CVE-2006-7226

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    CVE-2006-7226

    Published: 3 Dec 2007Last Modified: 10 Apr 2026

    Summary:

    Details: 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).

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

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High