CVE-2011-1951

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Summary

CVECVE-2011-1951
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-07-11 20:55:01 UTC
Updated2026-04-29 01:13:23 UTC
Descriptionlib/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.

Risk And Classification

Primary CVSS: v2.0 4.3 from [email protected]

AV:N/AC:M/Au:N/C:N/I:N/A:P

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:M/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Oneidentity Syslog-ng All All All All
Application Pcre Pcre 8.12 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
BalaBit IT Security syslog-ng PCRE Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Bug 709088 – CVE-2011-1951 syslog-ng: DoS (excessive memory use) by processing certain pcre patterns af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
oss-security - CVE Request -- syslog-ng -- Possible DoS af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Patch, Third Party Advisory
git.balabit.hu Git - bazsi/syslog-ng-3.2.git/commit af854a3a-2127-422b-91ae-364da2661108 git.balabit.hu
Fedora update for syslog-ng - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Third Party Advisory
[SECURITY] Fedora 14 Update: syslog-ng-3.1.4-4.fc14 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
git.balabit.hu Git - bazsi/syslog-ng-3.2.git/commit MITRE git.balabit.hu
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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