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Vulnerability record · CVE-2004-0797 · published 20 October 2004

CVE-2004-0797: Zlib vulnerability

Zlib · Zlib

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).

2.1 CVSS 2.0 Low EPSS 0.47% · top 61.6%
2.1CVSS 2.0 base score
0.47%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
40References
16 Jun 2026Last modified by NVD

Description

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).

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

Affected products

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

References

LinkTags
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.6/SCOSA-2006.6.txt
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2004.17/SCOSA-2004.17.txt
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=252253
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000865
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000878
http://marc.info/?l=bugtraq&m=109353792914900&w=2
http://secunia.com/advisories/11129
http://secunia.com/advisories/17054
http://secunia.com/advisories/18377
http://security.gentoo.org/glsa/glsa-200408-26.xml
http://securitytracker.com/id?1011085
http://www.kb.cert.org/vuls/id/238678 US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2004:090
http://www.novell.com/linux/security/advisories/2004_29_zlib.html
http://www.osvdb.org/9360
http://www.osvdb.org/9361
http://www.securityfocus.com/bid/11051
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2004&m=slackware-security.319160
https://bugzilla.fedora.us/show_bug.cgi?id=2043
https://exchange.xforce.ibmcloud.com/vulnerabilities/17119
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.6/SCOSA-2006.6.txt
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2004.17/SCOSA-2004.17.txt
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=252253
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000865
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000878
http://marc.info/?l=bugtraq&m=109353792914900&w=2
http://secunia.com/advisories/11129
http://secunia.com/advisories/17054
http://secunia.com/advisories/18377
http://security.gentoo.org/glsa/glsa-200408-26.xml
http://securitytracker.com/id?1011085
http://www.kb.cert.org/vuls/id/238678 US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2004:090
http://www.novell.com/linux/security/advisories/2004_29_zlib.html
http://www.osvdb.org/9360
http://www.osvdb.org/9361
http://www.securityfocus.com/bid/11051
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2004&m=slackware-security.319160
https://bugzilla.fedora.us/show_bug.cgi?id=2043
https://exchange.xforce.ibmcloud.com/vulnerabilities/17119

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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-2004-0797), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.