CVE-2011-1951 — Syslog-ng vulnerability

CWE-3998 documents6 sources
Severity
4.3MEDIUMNVD
EPSS
1.5%
top 18.56%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Oneidentity Syslog-ng
Timeline
PublishedJul 11
Latest updateMay 13

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 vector

AV:N/AC:M/C:N/I:N/A:PExploitability: 8.6 | Impact: 2.9

Affected Packages2 packages

▶Debianoneidentity/syslog-ng< 3.2.4-1+3

Patches

Patch: www.openwall.com ↗Patch: bugzilla.redhat.com ↗Patch: www.openwall.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-7jqv-hh4c-ww3h: lib/logmatcher↗2022-05-13
▶
CVEList
CVE-2011-1951: lib/logmatcher↗2011-07-11
▶
OSV
CVE-2011-1951: lib/logmatcher↗2011-07-11
▶

📋Vendor Advisories

1
Debian
CVE-2011-1951: syslog-ng - lib/logmatcher.c in Balabit syslog-ng before 3.2.4, when the global flag is set ...↗2011
▶

💬Community

3
Bugzilla
CVE-2011-1951 syslog-ng: DoS (excessive memory use) by processing certain pcre patterns [fedora-14]↗2011-05-30
▶
Bugzilla
CVE-2011-1951 syslog-ng: DoS (excessive memory use) by processing certain pcre patterns [fedora-13]↗2011-05-30
▶
Bugzilla
CVE-2011-1951 syslog-ng: DoS (excessive memory use) by processing certain pcre patterns↗2011-05-30
▶
CVE-2011-1951 — Oneidentity Syslog-ng vulnerability | cvebase