CVE-2011-1951

Gentoo Linux Security Advisory 201412-09

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

lib/logmatcher.c en Balabit syslog-ng anterior a v3.2.4, cuando la bandera global está habilitada y cuando usa PCRE v8.12 y posiblemente otras versiones, permite a atacantes remotos provocar una denegación de servicio(consumo de memoria) a través de un mensaje que no coincide con una expresión regular.

This GLSA contains notification of vulnerabilities found in several Gentoo packages which have been fixed prior to January 1, 2012. The worst of these vulnerabilities could lead to local privilege escalation and remote code execution.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

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

2011-05-09 CVE Reserved
2011-07-11 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-399: Resource Management Errors

CAPEC

References (6)

URL	Tag	Source
http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff	X_refsource_confirm
http://secunia.com/advisories/45122	Third Party Advisory
http://www.securityfocus.com/bid/47800	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2011/05/26/1	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=709088	2023-02-13

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.html	2023-02-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oneidentity Search vendor "Oneidentity"	Syslog-ng Search vendor "Oneidentity" for product "Syslog-ng"	< 3.2.4 Search vendor "Oneidentity" for product "Syslog-ng" and version " < 3.2.4"	-	Affected	in	Pcre Search vendor "Pcre"	Pcre Search vendor "Pcre" for product "Pcre"	8.12 Search vendor "Pcre" for product "Pcre" and version "8.12"	-	Safe