CVE-2009-2703

Pidgin: NULL pointer dereference by handling IRC topic(s) (DoS)

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

libpurple/protocols/irc/msgs.c in the IRC protocol plugin in libpurple in Pidgin before 2.6.2 allows remote IRC servers to cause a denial of service (NULL pointer dereference and application crash) via a TOPIC message that lacks a topic string.

libpurple/protocols/irc/msgs.c en el complemento (plugin) de protocolo IRC de libpurple en Pidgin v2.6.2 permite causar a servidores IRC remotos para una denegación de servicio (mediante una desreferencia a puntero NULL y caida de la aplicación) a través de un mensaje TOPIC que carece de una cadena de asunto.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

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

2009-08-05 CVE Reserved
2009-09-07 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-476: NULL Pointer Dereference

CAPEC

References (8)

URL	Tag	Source
http://www.securityfocus.com/bid/36277	Vdb Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11379	Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6435	Signature

URL	Date	SRC

URL	Date	SRC
http://developer.pidgin.im/viewmtn/revision/info/ad2c6ee53ec9122b25aeb1f918db53be69bdeac3	2017-09-19
http://www.pidgin.im/news/security/index.php?id=40	2017-09-19

URL	Date	SRC
http://secunia.com/advisories/36601	2017-09-19
https://access.redhat.com/security/cve/CVE-2009-2703	2009-10-29
https://bugzilla.redhat.com/show_bug.cgi?id=521823	2009-10-29

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"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	linux	Affected
Pidgin Search vendor "Pidgin"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	32_bit	Affected
Pidgin Search vendor "Pidgin"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	32_bit	Affected
Pidgin Search vendor "Pidgin"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	32_bit	Affected
Pidgin Search vendor "Pidgin"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	32_bit	Affected
Pidgin Search vendor "Pidgin"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	32_bit	Affected
Pidgin Search vendor "Pidgin"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	32_bit	Affected
Pidgin Search vendor "Pidgin"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	32_bit	Affected
Pidgin Search vendor "Pidgin"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	32_bit	Affected
Pidgin Search vendor "Pidgin"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	32_bit	Affected
Pidgin Search vendor "Pidgin"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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"	Libpurple Search vendor "Pidgin" for product "Libpurple"	*	-	Affected	in	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