Bug 552483 (CVE-2010-0013)

Summary:	CVE-2010-0013 pidgin/libpurple: MSN custom smiley request directory traversal file disclosure
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	bressers, kreilly, wtogami
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:	2010-02-10 07:17:04 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:	552492, 552493, 552494, 552495, 552496, 833965
Bug Blocks:

Description Tomas Hoger 2010-01-05 10:06:37 UTC

On 26C3, Fabian Yamaguchi presented a directory traversal flaw in libpurple MSN protocol implementation.  The flaw can be used by the remote attacker to download arbitrary file readable by the user running instant messenger using libpurple (such as pidgin) from the victim's computer via MSN emoticon / smiley download request.  More details in Fabian's presentation:

http://events.ccc.de/congress/2009/Fahrplan/events/3596.en.html
http://events.ccc.de/congress/2009/Fahrplan/attachments/1483_26c3_ipv4_fuckups.pdf
(slides 10-22)

Upstream fix:
http://d.pidgin.im/viewmtn/revision/info/c64a1adc8bda2b4aeaae1f273541afbc4f71b810

which depends on the other two commits:
http://d.pidgin.im/viewmtn/revision/info/4be2df4f72bd8a55cdae7f2554b73342a497c92f
http://d.pidgin.im/viewmtn/revision/info/3d02401cf232459fc80c0837d31e05fae7ae5467

References:
http://thread.gmane.org/gmane.comp.security.oss.general/2462

Mitigations:
Remove ~/.purple/custom_smiley/ directory if it exists.  The directory is not created by default and is created when first custom smiley is defined.

Comment 2 Fedora Update System 2010-01-12 23:40:51 UTC

pidgin-2.6.5-1.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 3 Fedora Update System 2010-01-12 23:49:10 UTC

pidgin-2.6.5-1.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 errata-xmlrpc 2010-01-14 17:23:31 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 5

Via RHSA-2010:0044 https://rhn.redhat.com/errata/RHSA-2010-0044.html