CVE-2011-1951

high

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.

References

Advisories
More

https://bugzilla.redhat.com/show_bug.cgi?id=709088

http://www.securityfocus.com/bid/47800

http://www.openwall.com/lists/oss-security/2011/05/26/1

http://secunia.com/advisories/45122

http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.html

http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff

Details

Source: Mitre, NVD

Published: 2011-07-11

Updated: 2025-04-11

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.01548