CVE-2006-7226
CVE-2006-7226 is a medium-severity vulnerability in Redhat Enterprise Linux Desktop with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 2.0 base score 4.3)
- EPSS exploit prediction: 2% (73rd percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Redhat Enterprise Linux Desktop
- Published:
- Last modified:
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).
Frequently asked questions
- What is CVE-2006-7226?
- 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).
- How severe is CVE-2006-7226?
- CVE-2006-7226 has a CVSS 2.0 base score of 4.3, rated medium severity.
- Is CVE-2006-7226 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2006-7226?
- CVE-2006-7226 primarily affects Redhat Enterprise Linux Desktop. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2006-7226?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2006-7226 published?
- CVE-2006-7226 was published on 2007-12-03 and last updated on 2026-06-16.
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
Affected products (4)
- cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:4.0:*:as:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:4.0:*:es:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:4.0:*:ws:*:*:*:*:*
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