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.

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has rsyslog packages installed that are affected by a vulnerability:

  - 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. (CVE-2011-3200)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has rsyslog packages installed that are affected by a vulnerability:

  - 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.
    (CVE-2011-3200)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Specially crafted log messages could crash rsyslogd (CVE-2011-3200).

From Red Hat Security Advisory 2011:1247 :

Updated rsyslog packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The rsyslog packages provide an enhanced, multi-threaded syslog daemon that supports MySQL, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine grained output format control.

A two byte buffer overflow flaw was found in the rsyslog daemon's parseLegacySyslogMsg function. An attacker able to submit log messages to rsyslogd could use this flaw to crash the daemon. (CVE-2011-3200)

All rsyslog users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, the rsyslog daemon will be restarted automatically.

The rsyslog packages provide an enhanced, multi-threaded syslog daemon that supports MySQL, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine grained output format control.

A two byte buffer overflow flaw was found in the rsyslog daemon's parseLegacySyslogMsg function. An attacker able to submit log messages to rsyslogd could use this flaw to crash the daemon. (CVE-2011-3200)

All rsyslog users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, the rsyslog daemon will be restarted automatically.

It was discovered that rsyslog had an off-by-two error when parsing legacy syslog messages. An attacker could potentially exploit this to cause a denial of service via application crash.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

new upstream version 5.8.5 which fixes CVE-2011-3200

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

updated package which fixes CVE-2011-3200

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

A vulnerability was discovered and corrected in rsyslog :

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 (CVE-2011-3200).

The updated packages have been patched to correct this issue.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2011:1247 advisory.

  - rsyslog: parseLegacySyslogMsg off-by-two buffer overflow (CVE-2011-3200)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
154491	NewStart CGSL CORE 5.05 / MAIN 5.05 : rsyslog Vulnerability (NS-SA-2021-0176)	Nessus	NewStart CGSL Local Security Checks	high
131408	NewStart CGSL CORE 5.04 / MAIN 5.04 : rsyslog Vulnerability (NS-SA-2019-0225)	Nessus	NewStart CGSL Local Security Checks	medium
76013	openSUSE Security Update : rsyslog (openSUSE-SU-2011:1020-1)	Nessus	SuSE Local Security Checks	medium
75728	openSUSE Security Update : rsyslog (openSUSE-SU-2011:1020-1)	Nessus	SuSE Local Security Checks	medium
68343	Oracle Linux 6 : rsyslog (ELSA-2011-1247)	Nessus	Oracle Linux Local Security Checks	medium
61129	Scientific Linux Security Update : rsyslog on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
56384	Ubuntu 11.04 : rsyslog vulnerability (USN-1224-1)	Nessus	Ubuntu Local Security Checks	medium
56292	Fedora 15 : rsyslog-5.8.5-1.fc15 (2011-12616)	Nessus	Fedora Local Security Checks	medium
56203	Fedora 14 : rsyslog-4.6.3-3.fc14 (2011-12282)	Nessus	Fedora Local Security Checks	medium
56185	Fedora 16 : rsyslog-5.8.5-1.fc16 (2011-12250)	Nessus	Fedora Local Security Checks	medium
56160	Mandriva Linux Security Advisory : rsyslog (MDVSA-2011:134-1)	Nessus	Mandriva Local Security Checks	medium
56047	RHEL 6 : rsyslog (RHSA-2011:1247)	Nessus	Red Hat Local Security Checks	critical

Detections

Analytics

CVE-2011-3200

critical

Tenable Plugins

high

medium

medium

medium

medium

medium

medium

medium

medium

medium

medium

critical