Zlib

zlib

Vendor: Zlib • 14 CVEs

CVEs (14)

CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS
CVE-2026-27171 1Zlib 1Zlib Jun 17, 2026 Feb 18, 2026 N/A· v4 5.5 MEDIUM· v3 N/A· v2 zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.
CVE-2026-22184 1Zlib 1Zlib Jul 15, 2026 Jan 7, 2026 4.6 MEDIUM· v4 7.8 HIGH· v3 N/A· v2 zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the co...Show more zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the core zlib compression library. The flaw occurs when a user executes the untgz command with an excessively long archive name supplied via the command line, leading to an out-of-bounds write in a fixed-size global buffer.Show less
CVE-2023-45853 2Smihica Zlib 2Pyminizip Zlib Jul 14, 2026 Oct 14, 2023 N/A· v4 9.8 CRITICAL· v3 N/A· v2 MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib prod...Show more MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API.Show less
CVE-2022-37434 6Apple DebianFedoraproject+3 more 18Active Iq Unified Manager Debian LinuxFedora+15 more Jul 14, 2026 Aug 5, 2022 N/A· v4 9.8 CRITICAL· v3 N/A· v2 zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applicati...Show more zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).Show less
CVE-2018-25032 11Apple AzulDebian+8 more 27Active Iq Unified Manager Debian LinuxE Series Santricity Os Controller+24 more Jul 14, 2026 Mar 25, 2022 N/A· v4 7.5 HIGH· v3 5.0 MEDIUM· v2 zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.
CVE-2016-9843 10Apple CanonicalDebian+7 more 24Active Iq Unified Manager Database ServerDebian Linux+21 more May 13, 2026 May 23, 2017 N/A· v4 9.8 CRITICAL· v3 7.5 HIGH· v2 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.
CVE-2016-9842 8Apple CanonicalDebian+5 more 19Database Server Debian LinuxEnterprise Linux Desktop+16 more Jul 14, 2026 May 23, 2017 N/A· v4 8.8 HIGH· v3 6.8 MEDIUM· v2 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.
CVE-2016-9841 9Apple CanonicalDebian+6 more 39Active Iq Unified Manager Cloud BackupDatabase Server+36 more Jul 14, 2026 May 23, 2017 N/A· v4 9.8 CRITICAL· v3 7.5 HIGH· v2 inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
CVE-2016-9840 9Apple BoostCanonical+6 more 20Boost Database ServerDebian Linux+17 more Jul 14, 2026 May 23, 2017 N/A· v4 8.8 HIGH· v3 6.8 MEDIUM· v2 inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
CVE-2005-1849 1Zlib 1Zlib Apr 16, 2026 Jul 26, 2005 N/A· v4 N/A· v3 5.0 MEDIUM· v2 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.
CVE-2005-2096 1Zlib 1Zlib Jul 14, 2026 Jul 6, 2005 N/A· v4 N/A· v3 7.5 HIGH· v2 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, a...Show more 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.Show less
CVE-2004-0797 1Zlib 1Zlib Apr 16, 2026 Oct 20, 2004 N/A· v4 N/A· v3 2.1 LOW· v2 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).
CVE-2003-0107 1Zlib 1Zlib Apr 16, 2026 Mar 7, 2003 N/A· v4 N/A· v3 7.5 HIGH· v2 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 arbitra...Show more 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.Show less
CVE-2002-0059 1Zlib 1Zlib Apr 16, 2026 Mar 15, 2002 N/A· v4 9.8 CRITICAL· v3 7.5 HIGH· v2 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 atta...Show more 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.Show less