PT-2011-3494 · Balabit+1 · Syslog-Ng+1

Jan Lieskovsky · Published 2011-07-11 · Updated 2023-02-13 · CVE-2011-1951

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions syslog-ng versions prior to 3.2.4

Description The issue allows remote attackers to cause a denial of service, specifically memory consumption, by sending a message that does not match a regular expression. This occurs when the global flag is set and PCRE 8.12, or possibly other versions, is in use.

Recommendations For versions prior to 3.2.4, update to version 3.2.4 or later to resolve the issue.

Fix

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2011-1951

OPENSUSE-SU-2024:10493-1

Affected Products

Pcre

Syslog-Ng

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2011-1951 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2011-1951 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2011-1951 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-1951 · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.html · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=709088 · Patch
• http://openwall.com/lists/oss-security/2011/05/26/1 · Patch
• http://securityfocus.com/bid/47800 · Note
• http://secunia.com/advisories/45122 · Note
• http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff · Note