Vulnerability Details : CVE-2011-1951
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.
Vulnerability category: Denial of service
Products affected by CVE-2011-1951
- cpe:2.3:a:oneidentity:syslog-ng:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2011-1951
0.80%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 81 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-1951
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST |
CWE ids for CVE-2011-1951
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-1951
-
http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff
-
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.html
[SECURITY] Fedora 14 Update: syslog-ng-3.1.4-4.fc14Mailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2011/05/26/1
oss-security - CVE Request -- syslog-ng -- Possible DoSMailing List;Patch;Third Party Advisory
-
http://www.securityfocus.com/bid/47800
BalaBit IT Security syslog-ng PCRE Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://bugzilla.redhat.com/show_bug.cgi?id=709088
709088 – (CVE-2011-1951) CVE-2011-1951 syslog-ng: DoS (excessive memory use) by processing certain pcre patternsIssue Tracking;Patch;Third Party Advisory
Jump to