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Vulnerability record · CVE-2005-2096 · published 6 July 2005

CVE-2005-2096: Zlib vulnerability

Zlib · Zlib

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.

7.5 CVSS 2.0 High EPSS 5.6% · top 7.3%
7.5CVSS 2.0 base score
5.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
113References
14 Jul 2026Last modified by NVD

Description

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.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:16.zlib.asc
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.6/SCOSA-2006.6.txt
http://lists.apple.com/archives/security-announce//2008/Nov/msg00001.html
http://lists.apple.com/archives/security-announce/2005//Aug/msg00001.html Vendor Advisory
http://lists.apple.com/archives/security-announce/2005/Aug/msg00000.html
http://secunia.com/advisories/15949 PatchVendor Advisory
http://secunia.com/advisories/17054
http://secunia.com/advisories/17225
http://secunia.com/advisories/17236
http://secunia.com/advisories/17326
http://secunia.com/advisories/17516
http://secunia.com/advisories/18377
http://secunia.com/advisories/18406
http://secunia.com/advisories/18507
http://secunia.com/advisories/19550
http://secunia.com/advisories/19597
http://secunia.com/advisories/24788
http://secunia.com/advisories/31492
http://secunia.com/advisories/32706
http://security.gentoo.org/glsa/glsa-200507-05.xml PatchVendor Advisory
http://securitytracker.com/id?1014398 Vendor Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101989-1 PatchVendor Advisory
http://support.apple.com/kb/HT3298
http://support.avaya.com/elmodocs2/security/ASA-2006-016.htm
http://www.debian.org/security/2005/dsa-740 PatchVendor Advisory
http://www.debian.org/security/2005/dsa-797 PatchVendor Advisory
http://www.debian.org/security/2006/dsa-1026
http://www.gentoo.org/security/en/glsa/glsa-200509-18.xml PatchVendor Advisory
http://www.kb.cert.org/vuls/id/680620 Third Party AdvisoryUS Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2005:112
http://www.mandriva.com/security/advisories?name=MDKSA-2005:196
http://www.mandriva.com/security/advisories?name=MDKSA-2006:070
http://www.redhat.com/support/errata/RHSA-2005-569.html PatchVendor Advisory
http://www.redhat.com/support/errata/RHSA-2008-0629.html
http://www.securityfocus.com/archive/1/421411/100/0/threaded
http://www.securityfocus.com/archive/1/464745/100/0/threaded
http://www.securityfocus.com/archive/1/482503/100/0/threaded
http://www.securityfocus.com/archive/1/482505/100/0/threaded
http://www.securityfocus.com/archive/1/482571/100/0/threaded
http://www.securityfocus.com/archive/1/482601/100/0/threaded

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-45853Zlib integer overflow vulnerabilityMiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment,…EPSS 3.2%9.8CVE-2022-37434Zlib out-of-bounds write vulnerabilityzlib 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 appl…EPSS 18%9.8CVE-2016-9841Zlib vulnerabilityinffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.EPSS 7.6%9.8CVE-2016-9843Zlib vulnerabilityThe 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 C…EPSS 5.8%9.8CVE-2002-0059Zlib double free vulnerabilityThe decompression algorithm in zlib 1.1.3 and earlier, as used in many different utilities and packages, causes inflateEnd to release certain memory …EPSS 9.7%8.8CVE-2016-9840Boost vulnerabilityinftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.EPSS 4.8%8.8CVE-2016-9842Zlib vulnerabilityThe inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shi…EPSS 5.2%7.5CVE-2018-25032zlib deflate out-of-bounds write on distant matcheszlib before 1.2.12 allows memory corruption when deflating (compressing) input that contains many distant matches, an out-of-bounds write (CWE-787). …EPSS 52%analysed

Source: NIST National Vulnerability Database (record CVE-2005-2096), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.