Bug 665421 (CVE-2010-4528)

Summary:	CVE-2010-4528 Pidgin: MSN DirectConnect DoS (crash) after receiving a short P2P message
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jrb, mbarnes, security-response-team
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:	2012-10-04 18:27:38 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:	665856
Bug Blocks:

Description Jan Lieskovsky 2010-12-23 18:19:10 UTC

A NULL pointer dereference flaw was found in the Pidgin MSN
DirectConnect protocol implementation, by processing certain
P2P messages. A remote, authenticated user could use this flaw
to cause denial of service (Pidgin crash).

Acknowledgements:

Red Hat would like to thank the Pidgin project for reporting this issue.
Upstream acknowledges Stu Tomlinson as the original reporter.

Comment 3 Jan Lieskovsky 2010-12-23 18:23:40 UTC

This issue did NOT affect the versions of the Pidgin package, as shipped
with Red Hat Enterprise Linux 4, 5, or 6.

--

This issue affects the versions of the Pidgin package, as shipped with
Fedora release of 13 and 14.

Comment 6 Huzaifa S. Sidhpurwala 2010-12-27 06:44:58 UTC

Public via:

http://pidgin.im/news/security/?id=49

Comment 7 Jan Lieskovsky 2010-12-27 13:39:57 UTC

CVE Request:
http://www.openwall.com/lists/oss-security/2010/12/27/1

Comment 8 Jan Lieskovsky 2010-12-27 13:41:17 UTC

Created pidgin tracking bugs for this issue

Affects: fedora-all [bug 665856]

Comment 10 Jan Lieskovsky 2010-12-27 13:50:48 UTC

Statement:

This issue did not affect the versions of pidgin package as shipped with
Red Hat Enterprise Linux 4, 5, and 6 as this issue is specific to versions
of libpurple from 2.7.6 up to 2.7.8.

Comment 12 Huzaifa S. Sidhpurwala 2010-12-31 07:29:17 UTC

This has been assigned CVE-2010-4528

Comment 14 Vincent Danen 2012-10-04 18:27:38 UTC

This was fixed in Fedora via pidgin-2.7.9-1.fc13 / fc14 / fc15:

* Mon Dec 27 2010 Stu Tomlinson <stu@...> 2.7.9-1
- 2.7.9, includes security/DoS fix in the MSN protocol (#665856)