Updated 4 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

344new WordPress flaws this week

390,080entries in the database

88 results · page 2 of 2

May 9, 2018In types.cpp in Exiv2 0.26, a large size value may lead to a SIGABRT during an attempt at memory allocation for an Exiv2::Internal::PngChunk::zlibUncompress calCVE-2018-10958 · Other software · Exiv2 · reported by MITREMedium 6.5
In types.cpp in Exiv2 0.26, a large size value may lead to a SIGABRT during an attempt at memory allocation for an Exiv2::Internal::PngChunk::zlibUncompress call.
Product
Exiv2
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record access.redhat.com github.com
Apr 8, 2018The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, becauCVE-2017-18258 · Other software · Siemens · reported by MITREMedium 6.5
The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.
Product
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record git.gnome.org kc.mcafee.com
Apr 3, 2018The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XCVE-2018-9251 · Other software · Xmlsoft · reported by MITREMedium 5.3
The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035.
Product
Libxml2
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.gnome.org lists.debian.org
Jan 16, 2018Directory traversal vulnerability in the do_extract_currentfile function in miniunz.c in miniunzip in minizip before 1.1-5 might allow remote attackers to writeCVE-2014-9485 · Other software · Zlib-ng · reported by MITREMedium 5.5
Directory traversal vulnerability in the do_extract_currentfile function in miniunz.c in miniunzip in minizip before 1.1-5 might allow remote attackers to write to arbitrary files via a crafted entry in a ZIP archive.
Product
Minizip-ng
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com openwall.com
May 23, 2017The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculatCVE-2016-9843 · Other software · Zlib · reported by security@opentext.comCritical 9.8
The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.
Product
Zlib
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
May 23, 2017The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negaCVE-2016-9842 · Other software · Siemens · reported by security@opentext.comHigh 8.8
The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.
Product
CADRA
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
May 23, 2017inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.CVE-2016-9841 · Other software · Siemens · reported by security@opentext.comCritical 9.8
inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
Product
CADRA
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
May 23, 2017inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.CVE-2016-9840 · Other software · Siemens · reported by security@opentext.comHigh 8.8
inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
Product
CADRA
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Apr 9, 2017elf_compress.c in elfutils 0.168 does not validate the zlib compression factor, which allows remote attackers to cause a denial of service (memory consumption) CVE-2017-7609 · Other software · Elfutils Project · reported by MITREMedium 5.5
elf_compress.c in elfutils 0.168 does not validate the zlib compression factor, which allows remote attackers to cause a denial of service (memory consumption) via a crafted ELF file.
Product
Elfutils
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org blogs.gentoo.org
Dec 23, 2016The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF fiCVE-2016-6881 · Other software · Ffmpeg · reported by MITREMedium 5.5
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.
Product
Ffmpeg
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com securityfocus.com
Dec 13, 2016Heap-based buffer overflow in the NArchive::NHfs::CHandler::ExtractZlibFile method in 7zip before 16.00 and p7zip allows remote attackers to execute arbitrary cCVE-2016-2334 · Other software · 7-zip · reported by cret@cert.orgHigh 7.8
Heap-based buffer overflow in the NArchive::NHfs::CHandler::ExtractZlibFile method in 7zip before 16.00 and p7zip allows remote attackers to execute arbitrary code via a crafted HFS+ image.
Product
7-zip
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record blog.talosintel.com blog.talosintelligence.com
Jan 4, 2016Buffer overflow in the tvb_uncompress function in epan/tvbuff_zlib.c in Wireshark 1.12.x before 1.12.9 and 2.0.x before 2.0.1 allows remote attackers to cause aCVE-2015-8721 · Other software · Wireshark · reported by MITREMedium 5.5
Buffer overflow in the tvb_uncompress function in epan/tvbuff_zlib.c in Wireshark 1.12.x before 1.12.9 and 2.0.x before 2.0.1 allows remote attackers to cause a denial of service (application crash) via a crafted packet with zlib compression.
Product
Wireshark
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record debian.org oracle.com
Dec 11, 2015zlib in the Compression component in Apple iOS before 9.2, OS X before 10.11.2, tvOS before 9.1, and watchOS before 2.1 does not initialize memory for an unspecCVE-2015-7054 · Computers, phones & browsers · Apple · reported by product-security@apple.comMedium 6.8
zlib in the Compression component in Apple iOS before 9.2, OS X before 10.11.2, tvOS before 9.1, and watchOS before 2.1 does not initialize memory for an unspecified data structure, which allows remote attackers to execute arbitrary code via a crafted web site.
Product
Iphone OS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.apple.com lists.apple.com
Nov 18, 2015The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which allows context-dependent attackers to cause a denial of seCVE-2015-8035 · Other software · Debian · reported by MITRELow 2.6
The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which allows context-dependent attackers to cause a denial of service (process hang) via crafted XML data.
Product
Debian Linux
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.apple.com lists.apple.com
Jan 21, 2015Multiple directory traversal vulnerabilities in pigz 2.3.1 allow remote attackers to write to arbitrary files via a (1) full pathname or (2) ..CVE-2015-1191 · Other software · Zlib · reported by MITREMedium 5
Multiple directory traversal vulnerabilities in pigz 2.3.1 allow remote attackers to write to arbitrary files via a (1) full pathname or (2) .. (dot dot) in an archive.
Product
Pigz
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Apr 27, 2014Race condition in pigz before 2.2.5 uses permissions derived from the umask when compressing a file before setting that file's permissions to match those of theCVE-2013-0296 · Other software · Zlib · reported by Red HatMedium 4.4
Race condition in pigz before 2.2.5 uses permissions derived from the umask when compressing a file before setting that file's permissions to match those of the original file, which might allow local users to bypass intended access permissions while compression is occurring.
Product
Pigz
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org mail.zlib.net
Aug 24, 2013Buffer overflow in the ToDot method in the WINGRAPHVIZLib.NEATO ActiveX control in WinGraphviz.dll in StarUML allows remote attackers to execute arbitrary code CVE-2013-5578 · Other software · Staruml · reported by MITREHigh 9.3
Buffer overflow in the ToDot method in the WINGRAPHVIZLib.NEATO ActiveX control in WinGraphviz.dll in StarUML allows remote attackers to execute arbitrary code via a long argument.
Product
Staruml
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record exploit-db.com exploit-db.com
Jan 19, 2011Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not properly check the amount of compression in zlib-compressed data, which allows remote attackers tCVE-2011-0015 · Other software · TOR · reported by Red HatMedium 5
Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not properly check the amount of compression in zlib-compressed data, which allows remote attackers to cause a denial of service via a large compression factor.
Product
TOR
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record archives.seul.org blog.torproject.org
Mar 19, 2010content_encoding.c in libcurl 7.10.5 through 7.19.7, when zlib is enabled, does not properly restrict the amount of callback data sent to an application that reCVE-2010-0734 · Other software · Curl · reported by Red HatMedium 6.8
content_encoding.c in libcurl 7.10.5 through 7.19.7, when zlib is enabled, does not properly restrict the amount of callback data sent to an application that requests automatic decompression, which might allow remote attackers to cause a denial of service (application crash) or have unspecified other impact by sending crafted compressed data to an application that relies on the intended data-length limit.
Product
Libcurl
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record curl.haxx.se curl.haxx.se
Jan 14, 2010Memory leak in the zlib_stateful_finish function in crypto/comp/c_zlib.c in OpenSSL 0.9.8l and earlier and 1.0.0 Beta through Beta 4 allows remote attackers to CVE-2009-4355 · Websites & servers · Openssl · reported by MITREMedium 5
Memory leak in the zlib_stateful_finish function in crypto/comp/c_zlib.c in OpenSSL 0.9.8l and earlier and 1.0.0 Beta through Beta 4 allows remote attackers to cause a denial of service (memory consumption) via vectors that trigger incorrect calls to the CRYPTO_cleanup_all_ex_data function, as demonstrated by use of SSLv3 and PHP with the Apache HTTP Server, a related issue to CVE-2008-1678.
Product
Openssl
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record cvs.openssl.org cvs.openssl.org
Jun 16, 2009Off-by-one error in the inflate function in Zlib.xs in Compress::Raw::Zlib Perl module before 2.017, as used in AMaViS, SpamAssassin, and possibly other productCVE-2009-1391 · Other software · Paul Marquess · reported by Red HatMedium 6.8
Off-by-one error in the inflate function in Zlib.xs in Compress::Raw::Zlib Perl module before 2.017, as used in AMaViS, SpamAssassin, and possibly other products, allows context-dependent attackers to cause a denial of service (hang or crash) via a crafted zlib compressed stream that triggers a heap-based buffer overflow, as exploited in the wild by Trojan.Downloader-71014 in June 2009.
Product
Compress-raw-zlib Perl Module
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record article.gmane.org article.gmane.org
Sep 4, 2008Wireshark (formerly Ethereal) 0.10.14 through 1.0.2 allows attackers to cause a denial of service (crash) via a packet with crafted zlib-compressed data that trCVE-2008-3933 · Other software · Wireshark · reported by Red HatLow 3.3
Wireshark (formerly Ethereal) 0.10.14 through 1.0.2 allows attackers to cause a denial of service (crash) via a packet with crafted zlib-compressed data that triggers an invalid read in the tvb_uncompress function.
Product
Wireshark
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record secunia.com secunia.com
Jul 10, 2008Memory leak in the zlib_stateful_init function in crypto/comp/c_zlib.c in libssl in OpenSSL 0.9.8f through 0.9.8h allows remote attackers to cause a denial of sCVE-2008-1678 · Websites & servers · Openssl · reported by Red HatMedium 5
Memory leak in the zlib_stateful_init function in crypto/comp/c_zlib.c in libssl in OpenSSL 0.9.8f through 0.9.8h allows remote attackers to cause a denial of service (memory consumption) via multiple calls, as demonstrated by initial SSL client handshakes to the Apache HTTP Server mod_ssl that specify a compression algorithm.
Product
Openssl
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.gentoo.org lists.apple.com
Apr 10, 2008Integer signedness error in the zlib extension module in Python 2.5.2 and earlier allows remote attackers to execute arbitrary code via a negative signed integeCVE-2008-1721 · Other software · Python · reported by MITREHigh 7.5
Integer signedness error in the zlib extension module in Python 2.5.2 and earlier allows remote attackers to execute arbitrary code via a negative signed integer, which triggers insufficient memory allocation and a buffer overflow.
Product
Python
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.python.org lists.apple.com
Mar 18, 2008bzlib.c in bzip2 before 1.0.5 allows user-assisted remote attackers to cause a denial of service (crash) via a crafted file that triggers a buffer over-read, asCVE-2008-1372 · Other software · Bzip · reported by MITREMedium 4.3
bzlib.c in bzip2 before 1.0.5 allows user-assisted remote attackers to cause a denial of service (crash) via a crafted file that triggers a buffer over-read, as demonstrated by the PROTOS GENOME test suite for Archive Formats.
Product
Bzip2
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record ftp.netbsd.org kb.vmware.com
Dec 31, 2007Unspecified vulnerability in the bzip2 decompression algorithm in nsis/bzlib_private.h in ClamAV before 0.92 has unknown impact and remote attack vectors.CVE-2007-6337 · Other software · Clam Anti-virus · reported by MITREHigh 10
Unspecified vulnerability in the bzip2 decompression algorithm in nsis/bzlib_private.h in ClamAV before 0.92 has unknown impact and remote attack vectors.
Product
Clamav
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.info.apple.com lists.apple.com
Apr 25, 2007Directory traversal vulnerability in index/mbox/mbox-storage.c in Dovecot before 1.0.rc29, when using the zlib plugin, allows remote attackers to read arbitraryCVE-2007-2231 · Other software · Dovecot · reported by MITREMedium 4.3
Directory traversal vulnerability in index/mbox/mbox-storage.c in Dovecot before 1.0.rc29, when using the zlib plugin, allows remote attackers to read arbitrary gzipped (.gz) mailboxes (mbox files) via a .. (dot dot) sequence in the mailbox name.
Product
Dovecot
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dovecot.org dovecot.org
Mar 23, 2007Stack-based buffer overflow in the file_compress function in minigzip (Modules/zlib) in Python 2.5 allows context-dependent attackers to execute arbitrary code CVE-2007-1657 · Other software · Python Software Foundation · reported by MITREHigh 7.5
Stack-based buffer overflow in the file_compress function in minigzip (Modules/zlib) in Python 2.5 allows context-dependent attackers to execute arbitrary code via a long file argument.
Product
Python
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record attrition.org osvdb.org
Nov 9, 2006The zlib_inflate function in Linux kernel 2.6.x allows local users to cause a denial of service (crash) via a malformed filesystem that uses zlib compression thCVE-2006-5823 · Computers, phones & browsers · Linux · reported by MITREMedium 4
The zlib_inflate function in Linux kernel 2.6.x allows local users to cause a denial of service (crash) via a malformed filesystem that uses zlib compression that triggers memory corruption, as demonstrated using cramfs.
Product
Linux Kernel
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record projects.info-pull.com rhn.redhat.com
Aug 23, 2005The huft_build function in inflate.c in the zlib routines in the Linux kernel before 2.6.12.5 returns the wrong value, which allows remote attackers to cause a CVE-2005-2459 · Computers, phones & browsers · Linux · reported by MITREMedium 5
The huft_build function in inflate.c in the zlib routines in the Linux kernel before 2.6.12.5 returns the wrong value, which allows remote attackers to cause a denial of service (kernel crash) via a certain compressed file that leads to a null pointer dereference, a different vulnerability than CVE-2005-2458.
Product
Linux Kernel
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugs.gentoo.org kernel.org
Aug 23, 2005inflate.c in the zlib routines in the Linux kernel before 2.6.12.5 allows remote attackers to cause a denial of service (kernel crash) via a compressed file witCVE-2005-2458 · Computers, phones & browsers · Linux · reported by MITREMedium 5
inflate.c in the zlib routines in the Linux kernel before 2.6.12.5 allows remote attackers to cause a denial of service (kernel crash) via a compressed file with "improper tables".
Product
Linux Kernel
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record kernel.org secunia.com
Jul 26, 2005inftrees.h in zlib 1.2.2 allows remote attackers to cause a denial of service (application crash) via an invalid file that causes a large dynamic tree to be proCVE-2005-1849 · Other software · Zlib · reported by security@debian.orgMedium 5
inftrees.h in zlib 1.2.2 allows remote attackers to cause a denial of service (application crash) via an invalid file that causes a large dynamic tree to be produced.
Product
Zlib
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record ftp.sco.com lists.apple.com
Jul 6, 2005zlib 1.2 and later versions allows remote attackers to cause a denial of service (crash) via a crafted compressed stream with an incomplete code description of CVE-2005-2096 · Other software · Siemens · reported by Red HatHigh 7.5
zlib 1.2 and later versions allows remote attackers to cause a denial of service (crash) via a crafted compressed stream with an incomplete code description of a length greater than 1, which leads to a buffer overflow, as demonstrated using a crafted PNG file.
Product
CADRA
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record ftp.freebsd.org ftp.sco.com
May 2, 2005FileZilla FTP server before 0.9.6, when using MODE Z (zlib compression), allows remote attackers to cause a denial of service (infinite loop) via certain file uCVE-2005-0851 · Other software · Filezilla-project · reported by MITREMedium 5
FileZilla FTP server before 0.9.6, when using MODE Z (zlib compression), allows remote attackers to cause a denial of service (infinite loop) via certain file uploads or directory listings.
Product
Filezilla Server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sourceforge.net securityfocus.com
Oct 20, 2004The error handling in the (1) inflate and (2) inflateBack functions in ZLib compression library 1.2.x allows local users to cause a denial of service (applicatiCVE-2004-0797 · Other software · Zlib · reported by MITRELow 2.1
The error handling in the (1) inflate and (2) inflateBack functions in ZLib compression library 1.2.x allows local users to cause a denial of service (application crash).
Product
Zlib
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record ftp.sco.com ftp.sco.com
Mar 7, 2003Buffer overflow in the gzprintf function in zlib 1.1.4, when zlib is compiled without vsnprintf or when long inputs are truncated using vsnprintf, allows attackCVE-2003-0107 · Other software · Zlib · reported by MITREHigh 7.5
Buffer overflow in the gzprintf function in zlib 1.1.4, when zlib is compiled without vsnprintf or when long inputs are truncated using vsnprintf, allows attackers to cause a denial of service or possibly execute arbitrary code.
Product
Zlib
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record ftp.caldera.com ftp.netbsd.org
Dec 31, 2002InfBlocks.java in JCraft JZlib before 0.0.7 allow remote attackers to cause a denial of service (NullPointerException) via an invalid block of deflated data.CVE-2002-2102 · Other software · Jcraft · reported by MITREMedium 5
InfBlocks.java in JCraft JZlib before 0.0.7 allow remote attackers to cause a denial of service (NullPointerException) via an invalid block of deflated data.
Product
Jzlib
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record iss.net jcraft.com
Mar 15, 2002The decompression algorithm in zlib 1.1.3 and earlier, as used in many different utilities and packages, causes inflateEnd to release certain memory more than oCVE-2002-0059 · Other software · Zlib · reported by MITRECritical 9.8
The decompression algorithm in zlib 1.1.3 and earlier, as used in many different utilities and packages, causes inflateEnd to release certain memory more than once (a "double free"), which may allow local and remote attackers to execute arbitrary code via a block of malformed compression data.
Product
Zlib
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record ftp.caldera.com distro.conectiva.com.br

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.

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