Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 12 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,762exploited flaws on CISA’s list
34added in the last 30 days
343new WordPress flaws this week
390,080entries in the database

604 results · page 5 of 13

  • Feb 11, 2025Issue summary: Clients using RFC7250 Raw Public Keys (RPKs) to authenticate a server may fail to notice that the server was not authenticated, because handshakeCVE-2024-12797 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 6.3

    Issue summary: Clients using RFC7250 Raw Public Keys (RPKs) to authenticate a server may fail to notice that the server was not authenticated, because handshakes don't abort as expected when the SSL_VERIFY_PEER verification mode is set. Impact summary: TLS and DTLS connections using raw public keys may be vulnerable to man-in-middle attacks when server authentication failure is not detected by clients. RPKs are disabled by default in both TLS clients and TLS servers. The issue only arises when TLS clients explicitly enable RPK use by the server, and the server, likewise, enables sending of an RPK instead of an X.509 certificate chain. The affected clients are those that then rely on the handshake to fail when the server's RPK fails to match one of the expected public keys, by setting the verification mode to SSL_VERIFY_PEER. Clients that enable server-side raw public keys can still find out that raw public key verification failed by calling SSL_get_verify_result(), and those that do, and take appropriate action, are not affected. This issue was introduced in the initial implementation of RPK support in OpenSSL 3.2. The FIPS modules in 3.4, 3.3, 3.2, 3.1 and 3.0 are not affec

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 3, 2025rust-openssl is a set of OpenSSL bindings for the Rust programming language.CVE-2025-24898 · Other software · sfackler · reported by GitHubMedium 6.3

    rust-openssl is a set of OpenSSL bindings for the Rust programming language. In affected versions `ssl::select_next_proto` can return a slice pointing into the `server` argument's buffer but with a lifetime bound to the `client` argument. In situations where the `sever` buffer's lifetime is shorter than the `client` buffer's, this can cause a use after free. This could cause the server to crash or to return arbitrary memory contents to the client. The crate`openssl` version 0.10.70 fixes the signature of `ssl::select_next_proto` to properly constrain the output buffer's lifetime to that of both input buffers. Users are advised to upgrade. In standard usage of `ssl::select_next_proto` in the callback passed to `SslContextBuilder::set_alpn_select_callback`, code is only affected if the `server` buffer is constructed *within* the callback.

    Product
    rust-openssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 30, 2025A misconfiguration in lmadmin.exe of FlexNet Publisher versions prior to 2024 R1 (11.19.6.0) allows the OpenSSL configuration file to load from a non-existent dCVE-2024-2658 · Other software · Flexera · reported by PSIRT-CNA@flexerasoftware.comHigh 8.5

    A misconfiguration in lmadmin.exe of FlexNet Publisher versions prior to 2024 R1 (11.19.6.0) allows the OpenSSL configuration file to load from a non-existent directory. An unauthorized, locally authenticated user with low privileges can potentially create the directory and load a specially crafted openssl.conf file leading to the execution of a malicious DLL (Dynamic-Link Library) with elevated privileges.

    Product
    FlexNet Publisher
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 20, 2025Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation.CVE-2024-13176 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 4.1

    Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation. Impact summary: A timing side-channel in ECDSA signature computations could allow recovering the private key by an attacker. However, measuring the timing would require either local access to the signing application or a very fast network connection with low latency. There is a timing signal of around 300 nanoseconds when the top word of the inverted ECDSA nonce value is zero. This can happen with significant probability only for some of the supported elliptic curves. In particular the NIST P-521 curve is affected. To be able to measure this leak, the attacker process must either be located in the same physical computer or must have a very fast network connection with low latency. For that reason the severity of this vulnerability is Low. The FIPS modules in 3.4, 3.3, 3.2, 3.1 and 3.0 are affected by this issue.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 13, 2024Insufficient control flow management in some Intel(R) QAT Engine for OpenSSL software before version v1.6.1 may allow information disclosure via network access.CVE-2024-33617 · Other software · reported by secure@intel.comHigh 8.2

    Insufficient control flow management in some Intel(R) QAT Engine for OpenSSL software before version v1.6.1 may allow information disclosure via network access.

    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 13, 2024Observable timing discrepancy in some Intel(R) QAT Engine for OpenSSL software before version v1.6.1 may allow information disclosure via network access.CVE-2024-31074 · Other software · reported by secure@intel.comHigh 8.2

    Observable timing discrepancy in some Intel(R) QAT Engine for OpenSSL software before version v1.6.1 may allow information disclosure via network access.

    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 13, 2024Observable discrepancy in some Intel(R) QAT Engine for OpenSSL software before version v1.6.1 may allow information disclosure via network access.CVE-2024-28885 · Other software · reported by secure@intel.comHigh 8.2

    Observable discrepancy in some Intel(R) QAT Engine for OpenSSL software before version v1.6.1 may allow information disclosure via network access.

    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 13, 2024Issue summary: Calling the OpenSSL API function SSL_free_buffers may cause memory to be accessed that was previously freed in some situations Impact summary: ACVE-2024-4741 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgHigh 7.5

    Issue summary: Calling the OpenSSL API function SSL_free_buffers may cause memory to be accessed that was previously freed in some situations Impact summary: A use after free can have a range of potential consequences such as the corruption of valid data, crashes or execution of arbitrary code. However, only applications that directly call the SSL_free_buffers function are affected by this issue. Applications that do not call this function are not vulnerable. Our investigations indicate that this function is rarely used by applications. The SSL_free_buffers function is used to free the internal OpenSSL buffer used when processing an incoming record from the network. The call is only expected to succeed if the buffer is not currently in use. However, two scenarios have been identified where the buffer is freed even when still in use. The first scenario occurs where a record header has been received from the network and processed by OpenSSL, but the full record body has not yet arrived. In this case calling SSL_free_buffers will succeed even though a record has only been partially processed and the buffer is still in use. The second scenario occurs where a full record containing

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 16, 2024Issue summary: Use of the low-level GF(2^m) elliptic curve APIs with untrusted explicit values for the field polynomial can lead to out-of-bounds memory reads oCVE-2024-9143 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 4.3

    Issue summary: Use of the low-level GF(2^m) elliptic curve APIs with untrusted explicit values for the field polynomial can lead to out-of-bounds memory reads or writes. Impact summary: Out of bound memory writes can lead to an application crash or even a possibility of a remote code execution, however, in all the protocols involving Elliptic Curve Cryptography that we're aware of, either only "named curves" are supported, or, if explicit curve parameters are supported, they specify an X9.62 encoding of binary (GF(2^m)) curves that can't represent problematic input values. Thus the likelihood of existence of a vulnerable application is low. In particular, the X9.62 encoding is used for ECC keys in X.509 certificates, so problematic inputs cannot occur in the context of processing X.509 certificates. Any problematic use-cases would have to be using an "exotic" curve encoding. The affected APIs include: EC_GROUP_new_curve_GF2m(), EC_GROUP_new_from_params(), and various supporting BN_GF2m_*() functions. Applications working with "exotic" explicit binary (GF(2^m)) curve parameters, that make it possible to represent invalid field polynomials with a zero constant term, via the abov

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 1, 2024A vulnerability was found in Golang FIPS OpenSSL.CVE-2024-9355 · Other software · Red Hat · reported by Red HatMedium 6.5

    A vulnerability was found in Golang FIPS OpenSSL. This flaw allows a malicious user to randomly cause an uninitialized buffer length variable with a zeroed buffer to be returned in FIPS mode. It may also be possible to force a false positive match between non-equal hashes when comparing a trusted computed hmac sum to an untrusted input sum if an attacker can send a zeroed buffer in place of a pre-computed sum.  It is also possible to force a derived key to be all zeros instead of an unpredictable value.  This may have follow-on implications for the Go TLS stack.

    Product
    Red Hat Enterprise Linux 7 Extended Lifecycle Support
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 26, 2024Inclusion of functionality from untrusted control sphere vulnerability in OpenSSL DLL component in Synology Drive Client before 3.3.0-15082 allows local users tCVE-2022-49038 · Network & remote access · Synology · reported by security@synology.comHigh 7.8

    Inclusion of functionality from untrusted control sphere vulnerability in OpenSSL DLL component in Synology Drive Client before 3.3.0-15082 allows local users to execute arbitrary code via unspecified vectors.

    Product
    Synology Drive Client
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 7, 2024Node.js versions which bundle an unpatched version of OpenSSL or run against a dynamically linked version of OpenSSL which are unpatched are vulnerable to the MCVE-2023-46809 · Other software · NodeJS · reported by support@hackerone.comHigh 7.4

    Node.js versions which bundle an unpatched version of OpenSSL or run against a dynamically linked version of OpenSSL which are unpatched are vulnerable to the Marvin Attack - https://people.redhat.com/~hkario/marvin/, if PCKS #1 v1.5 padding is allowed when performing RSA descryption using a private key.

    Product
    Node
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 3, 2024Issue summary: Applications performing certificate name checks (e.g., TLS clients checking server certificates) may attempt to read an invalid memory address reCVE-2024-6119 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgHigh 7.5

    Issue summary: Applications performing certificate name checks (e.g., TLS clients checking server certificates) may attempt to read an invalid memory address resulting in abnormal termination of the application process. Impact summary: Abnormal termination of an application can a cause a denial of service. Applications performing certificate name checks (e.g., TLS clients checking server certificates) may attempt to read an invalid memory address when comparing the expected name with an `otherName` subject alternative name of an X.509 certificate. This may result in an exception that terminates the application program. Note that basic certificate chain validation (signatures, dates, ...) is not affected, the denial of service can occur only when the application also specifies an expected DNS name, Email address or IP address. TLS servers rarely solicit client certificates, and even when they do, they generally don't perform a name check against a reference identifier (expected identity), but rather extract the presented identity after checking the certificate chain. So TLS servers are generally not affected and the severity of the issue is Moderate. The FIPS modules in 3.3, 3

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 31, 2024Cato Networks Windows SDP Client Local Privilege Escalation via openssl configuration file.CVE-2024-6975 · Other software · Cato Networks · reported by 2505284f-8ffb-486c-bf60-e19c1097a90bHigh 8.8

    Cato Networks Windows SDP Client Local Privilege Escalation via openssl configuration file. This issue affects SDP Client before 5.10.34.

    Product
    SDP Client
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 27, 2024Issue summary: Calling the OpenSSL API function SSL_select_next_proto with an empty supported client protocols buffer may cause a crash or memory contents to beCVE-2024-5535 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgCritical 9.1

    Issue summary: Calling the OpenSSL API function SSL_select_next_proto with an empty supported client protocols buffer may cause a crash or memory contents to be sent to the peer. Impact summary: A buffer overread can have a range of potential consequences such as unexpected application beahviour or a crash. In particular this issue could result in up to 255 bytes of arbitrary private data from memory being sent to the peer leading to a loss of confidentiality. However, only applications that directly call the SSL_select_next_proto function with a 0 length list of supported client protocols are affected by this issue. This would normally never be a valid scenario and is typically not under attacker control but may occur by accident in the case of a configuration or programming error in the calling application. The OpenSSL API function SSL_select_next_proto is typically used by TLS applications that support ALPN (Application Layer Protocol Negotiation) or NPN (Next Protocol Negotiation). NPN is older, was never standardised and is deprecated in favour of ALPN. We believe that ALPN is significantly more widely deployed than NPN. The SSL_select_next_proto function accepts a list of p

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 17, 2024oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, and S/MIME using post-quantum aCVE-2024-37305 · Other software · open-quantum-safe · reported by GitHubHigh 8.2

    oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, and S/MIME using post-quantum algorithms from liboqs. Flaws have been identified in the way oqs-provider handles lengths decoded with DECODE_UINT32 at the start of serialized hybrid (traditional + post-quantum) keys and signatures. Unchecked length values are later used for memory reads and writes; malformed input can lead to crashes or information leakage. Handling of plain/non-hybrid PQ key operation is not affected. This issue has been patched in in v0.6.1. All users are advised to upgrade. There are no workarounds for this issue.

    Product
    oqs-provider
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 9, 2024The openssl_private_decrypt function in PHP, when using PKCS1 padding (OPENSSL_PKCS1_PADDING, which is the default), is vulnerable to the Marvin Attack unless iCVE-2024-2408 · Websites & servers · PHP Group · reported by security@php.netMedium 5.9

    The openssl_private_decrypt function in PHP, when using PKCS1 padding (OPENSSL_PKCS1_PADDING, which is the default), is vulnerable to the Marvin Attack unless it is used with an OpenSSL version that includes the changes from this pull request: https://github.com/openssl/openssl/pull/13817 (rsa_pkcs1_implicit_rejection). These changes are part of OpenSSL 3.2 and have also been backported to stable versions of various Linux distributions, as well as to the PHP builds provided for Windows since the previous release. All distributors and builders should ensure that this version is used to prevent PHP from being vulnerable. PHP Windows builds for the versions 8.1.29, 8.2.20 and 8.3.8 and above include OpenSSL patches that fix the vulnerability.

    Product
    PHP
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 16, 2024Issue summary: Checking excessively long DSA keys or parameters may be very slow.CVE-2024-4603 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.3

    Issue summary: Checking excessively long DSA keys or parameters may be very slow. Impact summary: Applications that use the functions EVP_PKEY_param_check() or EVP_PKEY_public_check() to check a DSA public key or DSA parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. The functions EVP_PKEY_param_check() or EVP_PKEY_public_check() perform various checks on DSA parameters. Some of those computations take a long time if the modulus (`p` parameter) is too large. Trying to use a very large modulus is slow and OpenSSL will not allow using public keys with a modulus which is over 10,000 bits in length for signature verification. However the key and parameter check functions do not limit the modulus size when performing the checks. An application that calls EVP_PKEY_param_check() or EVP_PKEY_public_check() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. These functions are not called by OpenSSL itself on untrusted DSA keys so only applications that directly call these functions may be vulnerable.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 14, 2024iPerf3 before 3.17, when used with OpenSSL before 3.2.0 as a server with RSA authentication, allows a timing side channel in RSA decryption operations.CVE-2024-26306 · Other software · ES · reported by MITREMedium 5.9

    iPerf3 before 3.17, when used with OpenSSL before 3.2.0 as a server with RSA authentication, allows a timing side channel in RSA decryption operations. This side channel could be sufficient for an attacker to recover credential plaintext. It requires the attacker to send a large number of messages for decryption, as described in "Everlasting ROBOT: the Marvin Attack" by Hubert Kario.

    Product
    Iperf3
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 25, 2024A timing-based side-channel flaw exists in the perl-Crypt-OpenSSL-RSA package, which could be sufficient to recover plaintext across a network in a BleichenbachCVE-2024-2467 · Other software · Red Hat · reported by Red HatMedium 5.9

    A timing-based side-channel flaw exists in the perl-Crypt-OpenSSL-RSA package, which could be sufficient to recover plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode.

    Product
    Red Hat Enterprise Linux 6
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 25, 2024Issue summary: Checking excessively long invalid RSA public keys may take a long time.CVE-2023-6237 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.9

    Issue summary: Checking excessively long invalid RSA public keys may take a long time. Impact summary: Applications that use the function EVP_PKEY_public_check() to check RSA public keys may experience long delays. Where the key that is being checked has been obtained from an untrusted source this may lead to a Denial of Service. When function EVP_PKEY_public_check() is called on RSA public keys, a computation is done to confirm that the RSA modulus, n, is composite. For valid RSA keys, n is a product of two or more large primes and this computation completes quickly. However, if n is an overly large prime, then this computation would take a long time. An application that calls EVP_PKEY_public_check() and supplies an RSA key obtained from an untrusted source could be vulnerable to a Denial of Service attack. The function EVP_PKEY_public_check() is not called from other OpenSSL functions however it is called from the OpenSSL pkey command line application. For that reason that application is also vulnerable if used with the '-pubin' and '-check' options on untrusted data. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers ar

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 8, 2024Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when processing TLSv1.3 sessions Impact summary: An attacker may exCVE-2024-2511 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.9

    Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when processing TLSv1.3 sessions Impact summary: An attacker may exploit certain server configurations to trigger unbounded memory growth that would lead to a Denial of Service This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option is being used (but not if early_data support is also configured and the default anti-replay protection is in use). In this case, under certain conditions, the session cache can get into an incorrect state and it will fail to flush properly as it fills. The session cache will continue to grow in an unbounded manner. A malicious client could deliberately create the scenario for this failure to force a Denial of Service. It may also happen by accident in normal operation. This issue only affects TLS servers supporting TLSv1.3. It does not affect TLS clients. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 1.0.2 is also not affected by this issue.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 4, 2024A timing-based side-channel flaw exists in the rust-openssl package, which could be sufficient to recover a plaintext across a network in a Bleichenbacher-styleCVE-2024-3296 · Other software · Red Hat · reported by Red HatMedium 5.9

    A timing-based side-channel flaw exists in the rust-openssl package, which could be sufficient to recover a plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages for decryption. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode.

    Product
    Red Hat Enterprise Linux 8
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 26, 2024Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack Impact summary: ApplicaCVE-2024-0727 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.5

    Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack Impact summary: Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly. A file in PKCS12 format can contain certificates and keys and may come from an untrusted source. The PKCS12 specification allows certain fields to be NULL, but OpenSSL does not correctly check for this case. This can lead to a NULL pointer dereference that results in OpenSSL crashing. If an application processes PKCS12 files from an untrusted source using the OpenSSL APIs then that application will be vulnerable to this issue. OpenSSL APIs that are vulnerable to this are: PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() and PKCS12_newpass(). We have also fixed a similar issue in SMIME_write_PKCS7(). However since this function is related to writing data we do not consider it security significant. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 9, 2024Issue summary: The POLY1305 MAC (message authentication code) implementation contains a bug that might corrupt the internal state of applications running on PowCVE-2023-6129 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 6.5

    Issue summary: The POLY1305 MAC (message authentication code) implementation contains a bug that might corrupt the internal state of applications running on PowerPC CPU based platforms if the CPU provides vector instructions. Impact summary: If an attacker can influence whether the POLY1305 MAC algorithm is used, the application state might be corrupted with various application dependent consequences. The POLY1305 MAC (message authentication code) implementation in OpenSSL for PowerPC CPUs restores the contents of vector registers in a different order than they are saved. Thus the contents of some of these vector registers are corrupted when returning to the caller. The vulnerable code is used only on newer PowerPC processors supporting the PowerISA 2.07 instructions. The consequences of this kind of internal application state corruption can be various - from no consequences, if the calling application does not depend on the contents of non-volatile XMM registers at all, to the worst consequences, where the attacker could get complete control of the application process. However unless the compiler uses the vector registers for storing pointers, the most likely consequence, if an

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 12, 2023The jruby-openssl gem before 0.6 for JRuby mishandles SSL certificate validation.CVE-2009-4123 · Other software · Jruby · reported by MITREHigh 7.5

    The jruby-openssl gem before 0.6 for JRuby mishandles SSL certificate validation.

    Product
    Jruby-openssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 23, 2023The openssl (aka node-openssl) NPM package through 2.0.0 was characterized as "a nonsense wrapper with no real purpose" by its author, and accepts an opts argumCVE-2023-49210 · Other software · Node-openssl Project · reported by MITRECritical 9.8

    The openssl (aka node-openssl) NPM package through 2.0.0 was characterized as "a nonsense wrapper with no real purpose" by its author, and accepts an opts argument that contains a verb field (used for command execution). NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

    Product
    Node-openssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 23, 2023Bouncy Castle for Java before 1.73 contains a potential Denial of Service (DoS) issue within the Bouncy Castle org.bouncycastle.openssl.PEMParser class.CVE-2023-33202 · Other software · Bouncycastle · reported by MITREMedium 5.5

    Bouncy Castle for Java before 1.73 contains a potential Denial of Service (DoS) issue within the Bouncy Castle org.bouncycastle.openssl.PEMParser class. This class parses OpenSSL PEM encoded streams containing X.509 certificates, PKCS8 encoded keys, and PKCS7 objects. Parsing a file that has crafted ASN.1 data through the PEMParser causes an OutOfMemoryError, which can enable a denial of service attack. (For users of the FIPS Java API: BC-FJA 1.0.2.3 and earlier are affected; BC-FJA 1.0.2.4 is fixed.)

    Product
    Bouncy Castle For Java
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 14, 2023A untrusted search path vulnerability in Fortinet FortiClientWindows 7.0.9 allows an attacker to perform a DLL Hijack attack via a malicious OpenSSL engine librCVE-2023-41840 · Network & remote access · Fortinet · reported by psirt@fortinet.comHigh 7.8

    A untrusted search path vulnerability in Fortinet FortiClientWindows 7.0.9 allows an attacker to perform a DLL Hijack attack via a malicious OpenSSL engine library in the search path.

    Product
    FortiClientWindows
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 6, 2023Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow.CVE-2023-5678 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.3

    Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q. An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also called by a number of other OpenSSL functions. An application calling

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 25, 2023Issue summary: A bug has been identified in the processing of key and initialisation vector (IV) lengths.CVE-2023-5363 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgHigh 7.5

    Issue summary: A bug has been identified in the processing of key and initialisation vector (IV) lengths. This can lead to potential truncation or overruns during the initialisation of some symmetric ciphers. Impact summary: A truncation in the IV can result in non-uniqueness, which could result in loss of confidentiality for some cipher modes. When calling EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() or EVP_CipherInit_ex2() the provided OSSL_PARAM array is processed after the key and IV have been established. Any alterations to the key length, via the "keylen" parameter or the IV length, via the "ivlen" parameter, within the OSSL_PARAM array will not take effect as intended, potentially causing truncation or overreading of these values. The following ciphers and cipher modes are impacted: RC2, RC4, RC5, CCM, GCM and OCB. For the CCM, GCM and OCB cipher modes, truncation of the IV can result in loss of confidentiality. For example, when following NIST's SP 800-38D section 8.2.1 guidance for constructing a deterministic IV for AES in GCM mode, truncation of the counter portion could lead to IV reuse. Both truncations and overruns of the key and overruns of the IV will produc

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 16, 2023The functions to fetch e-mail via POP3 or IMAP as well as sending e-mail via SMTP use OpenSSL for static SSL or TLS based communication.CVE-2023-5422 · Other software · OTRS AG · reported by security@otrs.comHigh 8.7

    The functions to fetch e-mail via POP3 or IMAP as well as sending e-mail via SMTP use OpenSSL for static SSL or TLS based communication. As the SSL_get_verify_result() function is not used the certificated is trusted always and it can not be ensured that the certificate satisfies all necessary security requirements. This could allow an attacker to use an invalid certificate to claim to be a trusted host, use expired certificates, or conduct other attacks that could be detected if the certificate is properly validated. This issue affects OTRS: from 7.0.X before 7.0.47, from 8.0.X before 8.0.37; ((OTRS)) Community Edition: from 6.0.X through 6.0.34.

    Product
    OTRS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 8, 2023Issue summary: The POLY1305 MAC (message authentication code) implementation contains a bug that might corrupt the internal state of applications on the WindowsCVE-2023-4807 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgHigh 7.8

    Issue summary: The POLY1305 MAC (message authentication code) implementation contains a bug that might corrupt the internal state of applications on the Windows 64 platform when running on newer X86_64 processors supporting the AVX512-IFMA instructions. Impact summary: If in an application that uses the OpenSSL library an attacker can influence whether the POLY1305 MAC algorithm is used, the application state might be corrupted with various application dependent consequences. The POLY1305 MAC (message authentication code) implementation in OpenSSL does not save the contents of non-volatile XMM registers on Windows 64 platform when calculating the MAC of data larger than 64 bytes. Before returning to the caller all the XMM registers are set to zero rather than restoring their previous content. The vulnerable code is used only on newer x86_64 processors supporting the AVX512-IFMA instructions. The consequences of this kind of internal application state corruption can be various - from no consequences, if the calling application does not depend on the contents of non-volatile XMM registers at all, to the worst consequences, where the attacker could get complete control of the appli

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 23, 2023Apache Airflow SMTP Provider before 1.3.0, Apache Airflow IMAP Provider before 3.3.0, and Apache Airflow before 2.7.0 are affected by the Validation of OpenSSL CVE-2023-39441 · Websites & servers · Apache Software Foundation · reported by security@apache.orgMedium 5.9

    Apache Airflow SMTP Provider before 1.3.0, Apache Airflow IMAP Provider before 3.3.0, and Apache Airflow before 2.7.0 are affected by the Validation of OpenSSL Certificate vulnerability. The default SSL context with SSL library did not check a server's X.509 certificate.  Instead, the code accepted any certificate, which could result in the disclosure of mail server credentials or mail contents when the client connects to an attacker in a MITM position. Users are strongly advised to upgrade to Apache Airflow version 2.7.0 or newer, Apache Airflow IMAP Provider version 3.3.0 or newer, and Apache Airflow SMTP Provider version 1.3.0 or newer to mitigate the risk associated with this vulnerability

    Product
    Apache Airflow SMTP Provider
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 31, 2023Issue summary: Checking excessively long DH keys or parameters may be very slow.CVE-2023-3817 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.3

    Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs various checks on DH parameters. After fixing CVE-2023-3446 it was discovered that a large q parameter value can also trigger an overly long computation during some of these checks. A correct q value, if present, cannot be larger than the modulus p parameter, thus it is unnecessary to perform these checks if q is larger than p. An application that calls DH_check() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. The function DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_ex() and EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 23, 2023Local privilege escalation in Check Point Endpoint Security Client (version E87.30) via crafted OpenSSL configuration fileCVE-2023-28133 · Other software · Checkpoint · reported by cve@checkpoint.comHigh 7.8

    Local privilege escalation in Check Point Endpoint Security Client (version E87.30) via crafted OpenSSL configuration file

    Product
    Endpoint Security
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 19, 2023Issue summary: Checking excessively long DH keys or parameters may be very slow.CVE-2023-3446 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.3

    Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or parameters that have been supplied. Some of those checks use the supplied modulus value even if it has already been found to be too large. An application that calls DH_check() and supplies a key or parameters obtained from an untrusted source could be vulernable to a Denial of Service attack. The function DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 14, 2023Issue summary: The AES-SIV cipher implementation contains a bug that causes it to ignore empty associated data entries which are unauthenticated as a consequencCVE-2023-2975 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.3

    Issue summary: The AES-SIV cipher implementation contains a bug that causes it to ignore empty associated data entries which are unauthenticated as a consequence. Impact summary: Applications that use the AES-SIV algorithm and want to authenticate empty data entries as associated data can be misled by removing, adding or reordering such empty entries as these are ignored by the OpenSSL implementation. We are currently unaware of any such applications. The AES-SIV algorithm allows for authentication of multiple associated data entries along with the encryption. To authenticate empty data the application has to call EVP_EncryptUpdate() (or EVP_CipherUpdate()) with NULL pointer as the output buffer and 0 as the input buffer length. The AES-SIV implementation in OpenSSL just returns success for such a call instead of performing the associated data authentication operation. The empty data thus will not be authenticated. As this issue does not affect non-empty associated data authentication and we expect it to be rare for an application to use empty associated data entries this is qualified as Low severity issue.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 30, 2023A privilege escalation vulnerability exists in Node.js 20 that allowed loading arbitrary OpenSSL engines when the experimental permission model is enabled, whicCVE-2023-30586 · Other software · NodeJS · reported by support@hackerone.comHigh 7.5

    A privilege escalation vulnerability exists in Node.js 20 that allowed loading arbitrary OpenSSL engines when the experimental permission model is enabled, which can bypass and/or disable the permission model. The attack complexity is high. However, the crypto.setEngine() API can be used to bypass the permission model when called with a compatible OpenSSL engine. The OpenSSL engine can, for example, disable the permission model in the host process by manipulating the process's stack memory to locate the permission model Permission::enabled_ in the host process's heap memory. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

    Product
    Node
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 30, 2023Issue summary: Processing some specially crafted ASN.1 object identifiers or data containing them may be very slow.CVE-2023-2650 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 6.5

    Issue summary: Processing some specially crafted ASN.1 object identifiers or data containing them may be very slow. Impact summary: Applications that use OBJ_obj2txt() directly, or use any of the OpenSSL subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no message size limit may experience notable to very long delays when processing those messages, which may lead to a Denial of Service. An OBJECT IDENTIFIER is composed of a series of numbers - sub-identifiers - most of which have no size limit. OBJ_obj2txt() may be used to translate an ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the OpenSSL type ASN1_OBJECT) to its canonical numeric text form, which are the sub-identifiers of the OBJECT IDENTIFIER in decimal form, separated by periods. When one of the sub-identifiers in the OBJECT IDENTIFIER is very large (these are sizes that are seen as absurdly large, taking up tens or hundreds of KiBs), the translation to a decimal number in text may take a very long time. The time complexity is O(n^2) with 'n' being the size of the sub-identifiers in bytes (*). With OpenSSL 3.0, support to fetch cryptographic algorithms using names / identifiers in string form was intr

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 10, 2023Improper buffer restrictions in the Intel(R) QAT Engine for OpenSSL before version 0.6.16 may allow a privileged user to potentially enable escalation of privilCVE-2022-43507 · Other software · Intel · reported by secure@intel.comHigh 7.5

    Improper buffer restrictions in the Intel(R) QAT Engine for OpenSSL before version 0.6.16 may allow a privileged user to potentially enable escalation of privilege via network access.

    Product
    Quickassist Technology Engine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 20, 2023Issue summary: The AES-XTS cipher decryption implementation for 64 bit ARM platform contains a bug that could cause it to read past the input buffer, leading toCVE-2023-1255 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.9

    Issue summary: The AES-XTS cipher decryption implementation for 64 bit ARM platform contains a bug that could cause it to read past the input buffer, leading to a crash. Impact summary: Applications that use the AES-XTS algorithm on the 64 bit ARM platform can crash in rare circumstances. The AES-XTS algorithm is usually used for disk encryption. The AES-XTS cipher decryption implementation for 64 bit ARM platform will read past the end of the ciphertext buffer if the ciphertext size is 4 mod 5 in 16 byte blocks, e.g. 144 bytes or 1024 bytes. If the memory after the ciphertext buffer is unmapped, this will trigger a crash which results in a denial of service. If an attacker can control the size and location of the ciphertext buffer being decrypted by an application using AES-XTS on 64 bit ARM, the application is affected. This is fairly unlikely making this issue a Low severity one.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 28, 2023The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy check when doing certificate verification.CVE-2023-0466 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.3

    The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy check when doing certificate verification. However the implementation of the function does not enable the check which allows certificates with invalid or incorrect policies to pass the certificate verification. As suddenly enabling the policy check could break existing deployments it was decided to keep the existing behavior of the X509_VERIFY_PARAM_add0_policy() function. Instead the applications that require OpenSSL to perform certificate policy check need to use X509_VERIFY_PARAM_set1_policies() or explicitly enable the policy check by calling X509_VERIFY_PARAM_set_flags() with the X509_V_FLAG_POLICY_CHECK flag argument. Certificate policy checks are disabled by default in OpenSSL and are not commonly used by applications.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 28, 2023Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks.CVE-2023-0465 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 5.3

    Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks. Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 22, 2023A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy cCVE-2023-0464 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgHigh 7.5

    A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 24, 2023A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking.CVE-2022-4203 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgMedium 4.9

    A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. The read buffer overrun might result in a crash which could lead to a denial of service attack. In theory it could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext) although we are not aware of any working exploit leading to memory contents disclosure as of the time of release of this advisory. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 23, 2023A cryptographic vulnerability exists in Node.js <19.2.0, <18.14.1, <16.19.1, <14.21.3 that in some cases did does not clear the OpenSSL error stack after operatCVE-2023-23919 · Other software · NodeJS · reported by support@hackerone.comHigh 7.5

    A cryptographic vulnerability exists in Node.js <19.2.0, <18.14.1, <16.19.1, <14.21.3 that in some cases did does not clear the OpenSSL error stack after operations that may set it. This may lead to false positive errors during subsequent cryptographic operations that happen to be on the same thread. This in turn could be used to cause a denial of service.

    Product
    Node
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 8, 2023A NULL pointer can be dereferenced when signatures are being verified on PKCS7 signed or signedAndEnveloped data.CVE-2023-0401 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgHigh 7.5

    A NULL pointer can be dereferenced when signatures are being verified on PKCS7 signed or signedAndEnveloped data. In case the hash algorithm used for the signature is known to the OpenSSL library but the implementation of the hash algorithm is not available the digest initialization will fail. There is a missing check for the return value from the initialization function which later leads to invalid usage of the digest API most likely leading to a crash. The unavailability of an algorithm can be caused by using FIPS enabled configuration of providers or more commonly by not loading the legacy provider. PKCS7 data is processed by the SMIME library calls and also by the time stamp (TS) library calls. The TLS implementation in OpenSSL does not call these functions however third party applications would be affected if they call these functions to verify signatures on untrusted data.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 8, 2023There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName.CVE-2023-0286 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgHigh 7.4

    There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 8, 2023An invalid pointer dereference on read can be triggered when an application tries to check a malformed DSA public key by the EVP_PKEY_public_check() function.CVE-2023-0217 · Websites & servers · OpenSSL · reported by openssl-security@openssl.orgHigh 7.5

    An invalid pointer dereference on read can be triggered when an application tries to check a malformed DSA public key by the EVP_PKEY_public_check() function. This will most likely lead to an application crash. This function can be called on public keys supplied from untrusted sources which could allow an attacker to cause a denial of service attack. The TLS implementation in OpenSSL does not call this function but applications might call the function if there are additional security requirements imposed by standards such as FIPS 140-3.

    Product
    OpenSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Get in touch

Tell us what you're building.

A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.

01The person who'll do the work writes back
02A short call, then a written plan with the price
03Nothing starts until you say yes
04Hacked or down right now? Call, and we pick up the same day
843-331-6339

Not ready to talk yet? Run the free website check and see what Google sees.

What do you need?
Build
Grow
Protect
Urgent

No newsletter, no sales sequence. Just a reply.