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Vulnerability record · CVE-2003-0107 · published 7 March 2003

CVE-2003-0107: Zlib vulnerability

Zlib · Zlib

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.

7.5 CVSS 2.0 High EPSS 26% · top 2.1%
7.5CVSS 2.0 base score
26%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
38References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

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.

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.caldera.com/pub/security/OpenLinux/CSSA-2003-011.0.txt
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2003-004.txt.asc
http://distro.conectiva.com/atualizacoes/?id=a&anuncio=000619
http://jvn.jp/en/jp/JVN78689801/index.html
http://jvndb.jvn.jp/en/contents/2015/JVNDB-2015-000066.html
http://lists.apple.com/mhonarc/security-announce/msg00038.html
http://marc.info/?l=bugtraq&m=104610337726297&w=2
http://marc.info/?l=bugtraq&m=104610536129508&w=2
http://marc.info/?l=bugtraq&m=104620610427210&w=2
http://marc.info/?l=bugtraq&m=104887247624907&w=2
http://online.securityfocus.com/archive/1/312869 Exploit
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert%2F57405
http://www.iss.net/security_center/static/11381.php Vendor Advisory
http://www.kb.cert.org/vuls/id/142121 US Government Resource
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:033
http://www.osvdb.org/6599
http://www.redhat.com/support/errata/RHSA-2003-079.html
http://www.redhat.com/support/errata/RHSA-2003-081.html
http://www.securityfocus.com/bid/6913
ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2003-011.0.txt
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2003-004.txt.asc
http://distro.conectiva.com/atualizacoes/?id=a&anuncio=000619
http://jvn.jp/en/jp/JVN78689801/index.html
http://jvndb.jvn.jp/en/contents/2015/JVNDB-2015-000066.html
http://lists.apple.com/mhonarc/security-announce/msg00038.html
http://marc.info/?l=bugtraq&m=104610337726297&w=2
http://marc.info/?l=bugtraq&m=104610536129508&w=2
http://marc.info/?l=bugtraq&m=104620610427210&w=2
http://marc.info/?l=bugtraq&m=104887247624907&w=2
http://online.securityfocus.com/archive/1/312869 Exploit
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert%2F57405
http://www.iss.net/security_center/static/11381.php Vendor Advisory
http://www.kb.cert.org/vuls/id/142121 US Government Resource
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:033
http://www.osvdb.org/6599
http://www.redhat.com/support/errata/RHSA-2003-079.html
http://www.redhat.com/support/errata/RHSA-2003-081.html
http://www.securityfocus.com/bid/6913

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2003-0107), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.