Bug 742450

Summary:	pidgin: Heap-based buffer overflow by processing certain SILC private messages
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	daniel_atallah, deryni, eblanton, fedora, itamar, jrb, lschiere+bugs, mark, mbarnes, stu, vdanen
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:	2011-10-05 05:08:34 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	742457
Bug Blocks:	742574

Description Jan Lieskovsky 2011-09-30 07:57:53 UTC

Pidgin is a Gtk+ based multiprotocol instant messaging client. The SILC Purple plug-in allows Pidgin to use the Secure Internet Live Conferencing (SILC) protocol.

A heap-based buffer overflow flaw was found in the way the SILC Purple Pidgin protocol plug-in escaped certain UTF-8 private messages. If a Pidgin client received a specially-crafted SILC message, it could cause Pidgin to crash, or, potentially lead to arbitrary code execution with the privileges of the user running Pidgin.

References:
[1] http://developer.pidgin.im/ticket/14636

Comment 1 Jan Lieskovsky 2011-09-30 07:59:36 UTC

This issue affects the versions of the pidgin package, as shipped with Red Hat Enterprise Linux 4 and 5.

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This issue did NOT affect the version of the pidgin package, as shipped with Red Hat Enterprise Linux 6 since the Pidgin SILC plug-in has been disabled there.

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This issue affects the versions of the pidgin package, as shipped with Fedora release of 14 and 15.

Comment 4 Jan Lieskovsky 2011-09-30 08:17:00 UTC

Created pidgin tracking bugs for this issue

Affects: fedora-all [bug 742457]

Comment 8 Huzaifa S. Sidhpurwala 2011-10-05 05:08:34 UTC


*** This bug has been marked as a duplicate of bug 743481 ***

Comment 9 Fedora Update System 2012-01-05 20:55:07 UTC

pidgin-2.10.1-1.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 10 Fedora Update System 2012-01-07 22:59:24 UTC

pidgin-2.10.1-1.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.