What’s Vulnerable › Vulnerabilities

CVE-2006-7226

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2007-12-03 · updated 2026-06-16

Description

Perl-Compatible Regular Expression (PCRE) library before 6.7 does not properly calculate the compiled memory allocation for regular expressions that involve a quantified "subpattern containing a named recursion or subroutine reference," which allows context-dependent attackers to cause a denial of service (error or crash).

Affected products

• Red Hat Enterprise Linux: 4.0
• RedHat Enterprise Linux Desktop: 4.0

References

• http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
• http://secunia.com/advisories/28041
• http://secunia.com/advisories/28658
• http://support.avaya.com/elmodocs2/security/ASA-2007-505.htm
• http://www.mandriva.com/security/advisories?name=MDVSA-2008:030
• http://www.pcre.org/changelog.txt
• http://www.redhat.com/support/errata/RHSA-2007-1059.html
• http://www.redhat.com/support/errata/RHSA-2007-1068.html
• http://www.securityfocus.com/bid/26727
• https://bugzilla.redhat.com/show_bug.cgi?id=384781
• https://exchange.xforce.ibmcloud.com/vulnerabilities/40020
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11545

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