CVE-2011-3200

Rsyslog - Memory Corruption

Title source: rule

Description

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.

Exploits (1)

metasploit WORKING POC

rubypoc

https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/dos/syslog/rsyslog_long_tag.rb

View Code ZIP pw:eip

References (12)

[Various Sources] http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=1ca6cc236d1dabf1633238b873fb1c057e52f95e

[Mailing List] http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html

[Third Party Advisory] http://secunia.com/advisories/45922

[Third Party Advisory] http://secunia.com/advisories/46027

[Third Party Advisory, VDB Entry] http://securitytracker.com/id?1026000

[Vendor Advisory] http://www.mandriva.com/security/advisories?name=MDVSA-2011:134

[Vendor Advisory] http://www.redhat.com/support/errata/RHSA-2011-1247.html

[Patch, Vendor Advisory] http://www.rsyslog.com/potential-dos-with-malformed-tag/

[Patch] https://bugzilla.redhat.com/show_bug.cgi?id=727644

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/49413

[Mailing List, Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html

[Mailing List, Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html

Scores

EPSS 0.6739

EPSS Percentile 98.6%

Details

CWE

CWE-119

Status published

Products (50)

rsyslog/rsyslog 4.6.0

rsyslog/rsyslog 4.6.1

rsyslog/rsyslog 4.6.2

rsyslog/rsyslog 4.6.3

rsyslog/rsyslog 4.6.4

rsyslog/rsyslog 4.6.5

rsyslog/rsyslog 4.6.6

rsyslog/rsyslog 4.6.7

rsyslog/rsyslog 5.2.0

rsyslog/rsyslog 5.2.1

... and 40 more

Published Sep 06, 2011

Tracked Since Feb 18, 2026