Bug 803296 (CVE-2011-4939) - CVE-2011-4939 pidgin: NULL pointer dereference in the XMPP protocol plug-in by renaming user name
Summary: CVE-2011-4939 pidgin: NULL pointer dereference in the XMPP protocol plug-in b...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2011-4939
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 803299 806709 806710 806711 806712
Blocks: 803303
TreeView+ depends on / blocked
 
Reported: 2012-03-14 11:48 UTC by Jan Lieskovsky
Modified: 2021-02-24 12:54 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2012-07-05 03:32:09 UTC
Embargoed:

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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.
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