CVE-2011-3594

libpurple: invalid UTF-8 string handling in SILC messages

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The g_markup_escape_text function in the SILC protocol plug-in in libpurple 2.10.0 and earlier, as used in Pidgin and possibly other products, allows remote attackers to cause a denial of service (crash) via invalid UTF-8 sequences that trigger use of invalid pointers and an out-of-bounds read, related to interactions with certain versions of glib2.

La función g_markup_escape_text en el complemento de protocolo SILC en libpurple v2.10.0 y anteriores, como se usa en Pidgin y posiblemente en otros productos, permite a atacantes remotos provocar una denegación de servicio (caída) a través de secuencias UTF-8 inválidas que disparan el uso de punteros no válidos y lectura fuera de los límites, relacionado con interacciones con ciertas versiones de glib2

*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

2011-09-21 CVE Reserved
2011-11-04 CVE Published
2024-08-06 CVE Updated
2024-08-06 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (9)

URL	Tag	Source
http://developer.pidgin.im/viewmtn/revision/diff/be5e66abad2af29604bc794cc4c6600ab12751f3/with/7eb1f6d56cc58bbb5b56b7df53955d36b9b419b8	X_refsource_misc
http://pidgin.im/news/security/?id=56	X_refsource_confirm
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18034	Signature

URL	Date	SRC
http://developer.pidgin.im/ticket/14636	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://secunia.com/advisories/46376	2017-09-19
http://www.mandriva.com/security/advisories?name=MDVSA-2011:183	2017-09-19
http://www.redhat.com/support/errata/RHSA-2011-1371.html	2017-09-19
https://bugzilla.redhat.com/show_bug.cgi?id=743481	2011-10-14
https://access.redhat.com/security/cve/CVE-2011-3594	2011-10-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				<= 2.10.0 Search vendor "Pidgin" for product "Libpurple" and version " <= 2.10.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				1.0 Search vendor "Pidgin" for product "Libpurple" and version "1.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.0.0 Search vendor "Pidgin" for product "Libpurple" and version "2.0.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.0.1 Search vendor "Pidgin" for product "Libpurple" and version "2.0.1"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.0.2 Search vendor "Pidgin" for product "Libpurple" and version "2.0.2"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.1.0 Search vendor "Pidgin" for product "Libpurple" and version "2.1.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.1.1 Search vendor "Pidgin" for product "Libpurple" and version "2.1.1"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.2.0 Search vendor "Pidgin" for product "Libpurple" and version "2.2.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.2.1 Search vendor "Pidgin" for product "Libpurple" and version "2.2.1"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.2.2 Search vendor "Pidgin" for product "Libpurple" and version "2.2.2"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.3.0 Search vendor "Pidgin" for product "Libpurple" and version "2.3.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.3.1 Search vendor "Pidgin" for product "Libpurple" and version "2.3.1"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.4.0 Search vendor "Pidgin" for product "Libpurple" and version "2.4.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.4.1 Search vendor "Pidgin" for product "Libpurple" and version "2.4.1"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.4.2 Search vendor "Pidgin" for product "Libpurple" and version "2.4.2"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.4.3 Search vendor "Pidgin" for product "Libpurple" and version "2.4.3"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.5.0 Search vendor "Pidgin" for product "Libpurple" and version "2.5.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.5.1 Search vendor "Pidgin" for product "Libpurple" and version "2.5.1"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.5.2 Search vendor "Pidgin" for product "Libpurple" and version "2.5.2"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.5.3 Search vendor "Pidgin" for product "Libpurple" and version "2.5.3"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.5.4 Search vendor "Pidgin" for product "Libpurple" and version "2.5.4"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.5.5 Search vendor "Pidgin" for product "Libpurple" and version "2.5.5"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.5.6 Search vendor "Pidgin" for product "Libpurple" and version "2.5.6"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.5.7 Search vendor "Pidgin" for product "Libpurple" and version "2.5.7"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.5.8 Search vendor "Pidgin" for product "Libpurple" and version "2.5.8"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.5.9 Search vendor "Pidgin" for product "Libpurple" and version "2.5.9"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.6.0 Search vendor "Pidgin" for product "Libpurple" and version "2.6.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.6.1 Search vendor "Pidgin" for product "Libpurple" and version "2.6.1"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.6.2 Search vendor "Pidgin" for product "Libpurple" and version "2.6.2"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.6.3 Search vendor "Pidgin" for product "Libpurple" and version "2.6.3"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.6.4 Search vendor "Pidgin" for product "Libpurple" and version "2.6.4"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.6.5 Search vendor "Pidgin" for product "Libpurple" and version "2.6.5"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.6.6 Search vendor "Pidgin" for product "Libpurple" and version "2.6.6"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.0 Search vendor "Pidgin" for product "Libpurple" and version "2.7.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.1 Search vendor "Pidgin" for product "Libpurple" and version "2.7.1"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.2 Search vendor "Pidgin" for product "Libpurple" and version "2.7.2"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.3 Search vendor "Pidgin" for product "Libpurple" and version "2.7.3"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.4 Search vendor "Pidgin" for product "Libpurple" and version "2.7.4"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.5 Search vendor "Pidgin" for product "Libpurple" and version "2.7.5"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.6 Search vendor "Pidgin" for product "Libpurple" and version "2.7.6"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.7 Search vendor "Pidgin" for product "Libpurple" and version "2.7.7"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.8 Search vendor "Pidgin" for product "Libpurple" and version "2.7.8"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.9 Search vendor "Pidgin" for product "Libpurple" and version "2.7.9"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.10 Search vendor "Pidgin" for product "Libpurple" and version "2.7.10"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.7.11 Search vendor "Pidgin" for product "Libpurple" and version "2.7.11"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.8.0 Search vendor "Pidgin" for product "Libpurple" and version "2.8.0"		-		Affected
Pidgin Search vendor "Pidgin"		Libpurple Search vendor "Pidgin" for product "Libpurple"				2.9.0 Search vendor "Pidgin" for product "Libpurple" and version "2.9.0"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				*		-		Affected