Vulnerability Report

CVE-2011-3200

Title: Rsyslog Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2011-3200.

CWE Category CWE-119

Published Date Sep 06, 2011

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 5.0 CVSS v2.0

Exploit Probability (EPSS)

20.76%

Vulnerability Summary

CVE-2011-3200: Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message.

Impacted Vendors

rsyslog 1

Reference Links

http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=1ca6cc236d1dabf1633238b873fb1c057e52f95e http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html http://secunia.com/advisories/45922 http://secunia.com/advisories/46027 http://securitytracker.com/id?1026000 http://www.mandriva.com/security/advisories?name=MDVSA-2011:134 http://www.redhat.com/support/errata/RHSA-2011-1247.html http://www.rsyslog.com/potential-dos-with-malformed-tag/ http://www.securityfocus.com/bid/49413 https://bugzilla.redhat.com/show_bug.cgi?id=727644 http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=1ca6cc236d1dabf1633238b873fb1c057e52f95e http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html http://secunia.com/advisories/45922 http://secunia.com/advisories/46027 http://securitytracker.com/id?1026000 http://www.mandriva.com/security/advisories?name=MDVSA-2011:134 http://www.redhat.com/support/errata/RHSA-2011-1247.html http://www.rsyslog.com/potential-dos-with-malformed-tag/ http://www.securityfocus.com/bid/49413 https://bugzilla.redhat.com/show_bug.cgi?id=727644

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2011-3200 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 29, 2026 MODIFIED

Vulnerability data updated via NVD.

April 11, 2025 MODIFIED

Vulnerability data or affected products updated.

September 06, 2011 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.