Bug 1056913 (CVE-2013-6482)

Summary: CVE-2013-6482 pidgin: DoS via multiple null pointer dereferences in MSN 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 patch 1
none
Local copy of patch 2
none
Local copy of patch 3 none

Description Huzaifa S. Sidhpurwala 2014-01-23 07:22:28 UTC 
Multiple null-pointer dereferences were found in the MSN protocol plugin. Details as follows:

- NULL pointer dereference when parsing headers in MSN protocol plugin.
- NULL pointer dereference when parsing OIM data in MSN protocol plugin.
- NULL pointer dereference when parsing SOAP data in MSN protocol plugin.

If a remote server provided a specially-crafted MSN message, it could cause pidgin to crash.

Acknowledgements:

Red Hat would like to thank the Pidgin project for reporting this issue. Upstream acknowledges Fabian Yamaguchi and Christian Wressnegger of the University of Goettingen as the original reporters of this issue.
Comment 1 Huzaifa S. Sidhpurwala 2014-01-27 06:12:21 UTC 
Created attachment 855922 [details]
Local copy of patch 1
Comment 2 Huzaifa S. Sidhpurwala 2014-01-27 06:12:40 UTC 
Created attachment 855923 [details]
Local copy of patch 2
Comment 3 Huzaifa S. Sidhpurwala 2014-01-27 06:13:07 UTC 
Created attachment 855924 [details]
Local copy of patch 3
Comment 5 Vincent Danen 2014-01-28 20:54:44 UTC 
External References:

http://pidgin.im/news/security/?id=77
http://pidgin.im/news/security/?id=76
http://pidgin.im/news/security/?id=75
Comment 6 Huzaifa S. Sidhpurwala 2014-01-29 04:23:37 UTC 
Created pidgin tracking bugs for this issue:

Affects: fedora-all [bug 1059049]
Comment 7 errata-xmlrpc 2014-02-05 17:44:34 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 8 Fedora Update System 2014-02-06 03:49:41 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 9 Fedora Update System 2014-02-14 07:59:17 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.