Vulnerability Description
lib/logmatcher.c in Balabit syslog-ng before 3.2.4, when the global flag is set and when using PCRE 8.12 and possibly other versions, allows remote attackers to cause a denial of service (memory consumption) via a message that does not match a regular expression.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oneidentity | Syslog-Ng | < 3.2.4 |
| Pcre | Pcre | 8.12 |
Related Weaknesses (CWE)
References
- http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.htmlMailing ListThird Party Advisory
- http://secunia.com/advisories/45122Third Party Advisory
- http://www.openwall.com/lists/oss-security/2011/05/26/1Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/47800Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=709088Issue TrackingPatchThird Party Advisory
- http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.htmlMailing ListThird Party Advisory
- http://secunia.com/advisories/45122Third Party Advisory
- http://www.openwall.com/lists/oss-security/2011/05/26/1Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/47800Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=709088Issue TrackingPatchThird Party Advisory
FAQ
What is CVE-2011-1951?
CVE-2011-1951 is a vulnerability with a CVSS score of 4.3 (MEDIUM). lib/logmatcher.c in Balabit syslog-ng before 3.2.4, when the global flag is set and when using PCRE 8.12 and possibly other versions, allows remote attackers to cause a denial of service (memory consu...
How severe is CVE-2011-1951?
CVE-2011-1951 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1951?
Check the references section above for vendor advisories and patch information. Affected products include: Oneidentity Syslog-Ng, Pcre Pcre.