CVE-2005-4872

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2005-12-31 · updated 2026-06-16
Weakness: CWE-119

Description

Perl-Compatible Regular Expression (PCRE) library before 6.2 does not properly count the number of named capturing subpatterns, which allows context-dependent attackers to cause a denial of service (crash) via a regular expression with a large number of named subpatterns, which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.

Affected products

Pcre: through 6.1

References

http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
http://scary.beasts.org/security/CESA-2007-006.html
http://secunia.com/advisories/27582
http://secunia.com/advisories/27773
http://secunia.com/advisories/27869
http://secunia.com/advisories/28658
http://support.avaya.com/elmodocs2/security/ASA-2007-493.htm
http://www.mandriva.com/security/advisories?name=MDVSA-2008:030
http://www.novell.com/linux/security/advisories/2007_62_pcre.html
http://www.pcre.org/changelog.txt
http://www.redhat.com/support/errata/RHSA-2007-1052.html
http://www.securityfocus.com/bid/26462

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