Bug 803296 (CVE-2011-4939)

Summary:	CVE-2011-4939 pidgin: NULL pointer dereference in the XMPP protocol plug-in by renaming user name
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	itamar, jrb, mbarnes, stu
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-07-05 03:32:09 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	803299, 806709, 806710, 806711, 806712
Bug Blocks:	803303

Description Jan Lieskovsky 2012-03-14 11:48:30 UTC

A NULL pointer dereference flaw was found in the way XMPP protocol plug-in of Pidgin, a Gtk+ based multiprotocol instant messaging client, performed change of user name for particular buddy. If a remote Pidgin user, present on the buddy list of the victim, changed their Pidgin nickname to specially-crafted value it would lead to Pidgin client crash.

Upstream bug report:
[1] http://developer.pidgin.im/ticket/14392

Upstream patch:
[2] http://developer.pidgin.im/viewmtn/revision/info/d1d77da56217f3a083e1d459bef054db9f1d5699

Upstream security page entry:
[3] http://pidgin.im/news/security/?id=60

CVE request:
[4] http://www.openwall.com/lists/oss-security/2012/03/14/2

Comment 2 Jan Lieskovsky 2012-03-14 11:54:00 UTC

Created pidgin tracking bugs for this issue

Affects: fedora-all [bug 803299]

Comment 3 Vincent Danen 2012-03-14 18:17:24 UTC

This was assigned the name CVE-2011-4939:

http://www.openwall.com/lists/oss-security/2012/03/14/7

Comment 14 Huzaifa S. Sidhpurwala 2012-07-05 03:32:09 UTC

Statement:

Not Vulnerable. This issue does not affect the version of pidgin as shipped with Red Hat Enterprise Linux 5 and 6.