CVE-2010-0420

pidgin: Finch XMPP MUC Crash

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

libpurple in Finch in Pidgin before 2.6.6, when an XMPP multi-user chat (MUC) room is used, does not properly parse nicknames containing <br> sequences, which allows remote attackers to cause a denial of service (application crash) via a crafted nickname.

libpurple en Finch en Pidgin anterior a v2.6.6, cuando se usa un chat XMPP multi-usuario, no valida adecuadamente los alias (nicknames) que contienen la secuencia <br>, lo que permite a atacantes remotos provocar una denegación de servicio (caída de aplicación) mediante el alias.

*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

2010-01-27 CVE Reserved
2010-02-24 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (27)

URL	Tag	Source
http://secunia.com/advisories/38915	Third Party Advisory
http://secunia.com/advisories/39509	Third Party Advisory
http://www.osvdb.org/62439	Vdb Entry
http://www.securityfocus.com/bid/38294	Vdb Entry
http://www.vupen.com/english/advisories/2010/0914	Vdb Entry
http://www.vupen.com/english/advisories/2010/1020	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/56399	Vdb Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11485	Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18230	Signature

URL	Date	SRC

URL	Date	SRC
http://developer.pidgin.im/wiki/ChangeLog	2017-09-19
http://www.vupen.com/english/advisories/2010/0413	2017-09-19

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035332.html	2017-09-19
http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035347.html	2017-09-19
http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035409.html	2017-09-19
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html	2017-09-19
http://pidgin.im/news/security/?id=44	2017-09-19
http://secunia.com/advisories/38563	2017-09-19
http://secunia.com/advisories/38640	2017-09-19
http://secunia.com/advisories/38658	2017-09-19
http://secunia.com/advisories/38712	2017-09-19
http://www.debian.org/security/2010/dsa-2038	2017-09-19
http://www.mandriva.com/security/advisories?name=MDVSA-2010:041	2017-09-19
http://www.mandriva.com/security/advisories?name=MDVSA-2010:085	2017-09-19
http://www.ubuntu.com/usn/USN-902-1	2017-09-19
https://bugzilla.redhat.com/show_bug.cgi?id=565786	2010-02-18
https://rhn.redhat.com/errata/RHSA-2010-0115.html	2017-09-19
https://access.redhat.com/security/cve/CVE-2010-0420	2010-02-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				<= 2.6.5 Search vendor "Pidgin" for product "Pidgin" and version " <= 2.6.5"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.0.0 Search vendor "Pidgin" for product "Pidgin" and version "2.0.0"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.0.1 Search vendor "Pidgin" for product "Pidgin" and version "2.0.1"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.0.2 Search vendor "Pidgin" for product "Pidgin" and version "2.0.2"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.1.0 Search vendor "Pidgin" for product "Pidgin" and version "2.1.0"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.1.1 Search vendor "Pidgin" for product "Pidgin" and version "2.1.1"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.2.0 Search vendor "Pidgin" for product "Pidgin" and version "2.2.0"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.2.1 Search vendor "Pidgin" for product "Pidgin" and version "2.2.1"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.2.2 Search vendor "Pidgin" for product "Pidgin" and version "2.2.2"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.3.0 Search vendor "Pidgin" for product "Pidgin" and version "2.3.0"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.3.1 Search vendor "Pidgin" for product "Pidgin" and version "2.3.1"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.4.0 Search vendor "Pidgin" for product "Pidgin" and version "2.4.0"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.4.1 Search vendor "Pidgin" for product "Pidgin" and version "2.4.1"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.4.2 Search vendor "Pidgin" for product "Pidgin" and version "2.4.2"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.4.3 Search vendor "Pidgin" for product "Pidgin" and version "2.4.3"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.5.0 Search vendor "Pidgin" for product "Pidgin" and version "2.5.0"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.5.1 Search vendor "Pidgin" for product "Pidgin" and version "2.5.1"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.5.2 Search vendor "Pidgin" for product "Pidgin" and version "2.5.2"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.5.3 Search vendor "Pidgin" for product "Pidgin" and version "2.5.3"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.5.4 Search vendor "Pidgin" for product "Pidgin" and version "2.5.4"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.5.5 Search vendor "Pidgin" for product "Pidgin" and version "2.5.5"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.5.6 Search vendor "Pidgin" for product "Pidgin" and version "2.5.6"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.5.7 Search vendor "Pidgin" for product "Pidgin" and version "2.5.7"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.5.8 Search vendor "Pidgin" for product "Pidgin" and version "2.5.8"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.5.9 Search vendor "Pidgin" for product "Pidgin" and version "2.5.9"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.6.0 Search vendor "Pidgin" for product "Pidgin" and version "2.6.0"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.6.1 Search vendor "Pidgin" for product "Pidgin" and version "2.6.1"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.6.2 Search vendor "Pidgin" for product "Pidgin" and version "2.6.2"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.6.4 Search vendor "Pidgin" for product "Pidgin" and version "2.6.4"		-		Affected