CVE-2011-3200

rsyslog: parseLegacySyslogMsg off-by-two buffer overflow

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Un desbordamiento de búfer basado en la pila en la función parseLegacySyslogMsg en tools/syslogd.c en rsyslogd en rsyslog v4.6.x antes de v4.6.8 y v5.2.0 hasta la v5.8.4 podría permitir a atacantes remotos provocar una denegación de servicio (salida de la aplicación) a través de un TAG demasiado largo en un mensaje de syslog antiguo.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Adjacent

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-08-19 CVE Reserved
2011-09-06 CVE Published
2024-08-06 CVE Updated
2024-08-31 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (14)

URL	Tag	Source
http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=1ca6cc236d1dabf1633238b873fb1c057e52f95e	X_refsource_confirm
http://secunia.com/advisories/45922	Third Party Advisory
http://secunia.com/advisories/46027	Third Party Advisory
http://securitytracker.com/id?1026000	Vdb Entry
http://www.securityfocus.com/bid/49413	Vdb Entry

URL	Date	SRC
https://packetstorm.news/files/id/180541	2024-08-31

URL	Date	SRC
http://www.rsyslog.com/potential-dos-with-malformed-tag	2023-11-07
https://bugzilla.redhat.com/show_bug.cgi?id=727644	2011-09-01

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065837.html	2023-11-07
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065941.html	2023-11-07
http://lists.opensuse.org/opensuse-updates/2011-09/msg00013.html	2023-11-07
http://www.mandriva.com/security/advisories?name=MDVSA-2011:134	2023-11-07
http://www.redhat.com/support/errata/RHSA-2011-1247.html	2023-11-07
https://access.redhat.com/security/cve/CVE-2011-3200	2011-09-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				4.6.0 Search vendor "Rsyslog" for product "Rsyslog" and version "4.6.0"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				4.6.1 Search vendor "Rsyslog" for product "Rsyslog" and version "4.6.1"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				4.6.2 Search vendor "Rsyslog" for product "Rsyslog" and version "4.6.2"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				4.6.3 Search vendor "Rsyslog" for product "Rsyslog" and version "4.6.3"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				4.6.4 Search vendor "Rsyslog" for product "Rsyslog" and version "4.6.4"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				4.6.5 Search vendor "Rsyslog" for product "Rsyslog" and version "4.6.5"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				4.6.6 Search vendor "Rsyslog" for product "Rsyslog" and version "4.6.6"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				4.6.7 Search vendor "Rsyslog" for product "Rsyslog" and version "4.6.7"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.2.0 Search vendor "Rsyslog" for product "Rsyslog" and version "5.2.0"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.2.1 Search vendor "Rsyslog" for product "Rsyslog" and version "5.2.1"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.2.2 Search vendor "Rsyslog" for product "Rsyslog" and version "5.2.2"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.3.1 Search vendor "Rsyslog" for product "Rsyslog" and version "5.3.1"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.3.2 Search vendor "Rsyslog" for product "Rsyslog" and version "5.3.2"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.3.3 Search vendor "Rsyslog" for product "Rsyslog" and version "5.3.3"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.3.4 Search vendor "Rsyslog" for product "Rsyslog" and version "5.3.4"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.3.5 Search vendor "Rsyslog" for product "Rsyslog" and version "5.3.5"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.3.6 Search vendor "Rsyslog" for product "Rsyslog" and version "5.3.6"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.3.7 Search vendor "Rsyslog" for product "Rsyslog" and version "5.3.7"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.4.0 Search vendor "Rsyslog" for product "Rsyslog" and version "5.4.0"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.4.1 Search vendor "Rsyslog" for product "Rsyslog" and version "5.4.1"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.4.2 Search vendor "Rsyslog" for product "Rsyslog" and version "5.4.2"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.5.0 Search vendor "Rsyslog" for product "Rsyslog" and version "5.5.0"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.5.1 Search vendor "Rsyslog" for product "Rsyslog" and version "5.5.1"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.5.2 Search vendor "Rsyslog" for product "Rsyslog" and version "5.5.2"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.5.3 Search vendor "Rsyslog" for product "Rsyslog" and version "5.5.3"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.5.4 Search vendor "Rsyslog" for product "Rsyslog" and version "5.5.4"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.5.5 Search vendor "Rsyslog" for product "Rsyslog" and version "5.5.5"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.5.6 Search vendor "Rsyslog" for product "Rsyslog" and version "5.5.6"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.5.7 Search vendor "Rsyslog" for product "Rsyslog" and version "5.5.7"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.6.0 Search vendor "Rsyslog" for product "Rsyslog" and version "5.6.0"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.6.1 Search vendor "Rsyslog" for product "Rsyslog" and version "5.6.1"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.6.2 Search vendor "Rsyslog" for product "Rsyslog" and version "5.6.2"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.6.3 Search vendor "Rsyslog" for product "Rsyslog" and version "5.6.3"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.6.4 Search vendor "Rsyslog" for product "Rsyslog" and version "5.6.4"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.6.5 Search vendor "Rsyslog" for product "Rsyslog" and version "5.6.5"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.0 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.0"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.1 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.1"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.2 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.2"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.3 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.3"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.4 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.4"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.5 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.5"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.6 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.6"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.7 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.7"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.8 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.8"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.9 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.9"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.7.10 Search vendor "Rsyslog" for product "Rsyslog" and version "5.7.10"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.8.0 Search vendor "Rsyslog" for product "Rsyslog" and version "5.8.0"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.8.1 Search vendor "Rsyslog" for product "Rsyslog" and version "5.8.1"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.8.2 Search vendor "Rsyslog" for product "Rsyslog" and version "5.8.2"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.8.3 Search vendor "Rsyslog" for product "Rsyslog" and version "5.8.3"		-		Affected
Rsyslog Search vendor "Rsyslog"		Rsyslog Search vendor "Rsyslog" for product "Rsyslog"				5.8.4 Search vendor "Rsyslog" for product "Rsyslog" and version "5.8.4"		-		Affected