Bug 1056473 (CVE-2012-6152)

Summary: CVE-2012-6152 pidgin: DoS when decoding non-UTF-8 strings in Yahoo protocol plugin
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: cschalle, debarshir, jkurik, jrusnack, mbarnes, pfrields, security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: pidgin 2.10.8 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-09-19 20:05:54 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: 1058238, 1058239, 1058240, 1058242, 1058243, 1059049    
Bug Blocks: 1054257    
Attachments:
Description Flags
Local copy of the patch none

Description Huzaifa S. Sidhpurwala 2014-01-22 09:36:26 UTC 
A Denial-of-Service flaw was found in the way Yahoo protocol plugin handled character encoding. Many places in the Yahoo! protocol plugin assumed incoming strings were UTF-8 and failed to transcode from non-UTF-8 encodings.  This can lead to a crash when receiving strings that aren't UTF-8. 

Acknowledgements:

Red Hat would like to thank the Pidgin project for reporting this issue. Upstream acknowledges Thijs Alkemade and Robert Vehse as the original reporters of this issue.
Comment 1 Huzaifa S. Sidhpurwala 2014-01-22 09:37:43 UTC 
Created attachment 853758 [details]
Local copy of the patch
Comment 3 Vincent Danen 2014-01-28 21:04:34 UTC 
External References:

http://pidgin.im/news/security/?id=70
Comment 4 Huzaifa S. Sidhpurwala 2014-01-29 04:20:37 UTC 
Created pidgin tracking bugs for this issue:

Affects: fedora-all [bug 1059049]
Comment 5 errata-xmlrpc 2014-02-05 17:44:13 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2014:0139 https://rhn.redhat.com/errata/RHSA-2014-0139.html
Comment 6 Fedora Update System 2014-02-06 03:49:07 UTC 
pidgin-2.10.9-1.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 7 Fedora Update System 2014-02-14 07:58:43 UTC 
pidgin-2.10.9-1.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.