CVE-2011-1091

Pidgin: Multiple NULL pointer dereference flaws in Yahoo protocol plug-in

Severity Score

4.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

libymsg.c in the Yahoo! protocol plugin in libpurple in Pidgin 2.6.0 through 2.7.10 allows (1) remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a malformed YMSG notification packet, and allows (2) remote Yahoo! servers to cause a denial of service (NULL pointer dereference and application crash) via a malformed YMSG SMS message.

libymsg.c en Yahoo! en el plugin del protocolo en libpurple en Pidgin v2.6.0 hasta v2.7.10 permite (1) a usuarios autenticados de forma remota provocar una denegación de servicio (resolución de puntero NULL y caída de la aplicación) a través de notificaciones de paquetes YMSG mal formados, y permite (2) servidores remotos de Yahoo! provocar una denegación de servicio (resolución de puntero NULL y caída de la aplicación) a través de mensajes YMSG SMS mal formados.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-02-24 CVE Reserved
2011-03-14 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (21)

URL	Tag	Source
http://secunia.com/advisories/43721	Third Party Advisory
http://secunia.com/advisories/46376	Third Party Advisory
http://www.securityfocus.com/bid/46837	Vdb Entry
http://www.vupen.com/english/advisories/2011/0643	Vdb Entry
http://www.vupen.com/english/advisories/2011/0661	Vdb Entry
http://www.vupen.com/english/advisories/2011/0669	Vdb Entry
http://www.vupen.com/english/advisories/2011/0703	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/66055	Vdb Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18402	Signature

URL	Date	SRC

URL	Date	SRC
http://developer.pidgin.im/viewmtn/revision/diff/5cbe18129b6e7c660bc093f7e5e1414ceca17d04/with/a7c415abba1f5f01f79295337518837f73d99bb7/libpurple/protocols/yahoo/libymsg.c	2023-02-13
http://developer.pidgin.im/viewmtn/revision/info/a7c415abba1f5f01f79295337518837f73d99bb7	2023-02-13
http://www.pidgin.im/news/security/?id=51	2023-02-13

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055874.html	2023-02-13
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056309.html	2023-02-13
http://secunia.com/advisories/43695	2023-02-13
http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.466884	2023-02-13
http://www.redhat.com/support/errata/RHSA-2011-0616.html	2023-02-13
http://www.redhat.com/support/errata/RHSA-2011-1371.html	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=683031	2011-10-14
https://hermes.opensuse.org/messages/13195955	2023-02-13
https://access.redhat.com/security/cve/CVE-2011-1091	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"		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
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"				2.6.6 Search vendor "Pidgin" for product "Pidgin" and version "2.6.6"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.0 Search vendor "Pidgin" for product "Pidgin" and version "2.7.0"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.1 Search vendor "Pidgin" for product "Pidgin" and version "2.7.1"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.2 Search vendor "Pidgin" for product "Pidgin" and version "2.7.2"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.3 Search vendor "Pidgin" for product "Pidgin" and version "2.7.3"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.4 Search vendor "Pidgin" for product "Pidgin" and version "2.7.4"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.5 Search vendor "Pidgin" for product "Pidgin" and version "2.7.5"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.6 Search vendor "Pidgin" for product "Pidgin" and version "2.7.6"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.7 Search vendor "Pidgin" for product "Pidgin" and version "2.7.7"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.8 Search vendor "Pidgin" for product "Pidgin" and version "2.7.8"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.9 Search vendor "Pidgin" for product "Pidgin" and version "2.7.9"		-		Affected
Pidgin Search vendor "Pidgin"		Pidgin Search vendor "Pidgin" for product "Pidgin"				2.7.10 Search vendor "Pidgin" for product "Pidgin" and version "2.7.10"		-		Affected