Bug 1057484 (CVE-2013-6485)

Summary: CVE-2013-6485 pidgin: Heap-based buffer overflow when parsing chunked HTTP responses
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: impact=moderate,public=20140128,reported=20140122,source=upstream,cvss2=5.1/AV:N/AC:H/Au:N/C:P/I:P/A:P,rhel-5/pidgin=affected,rhel-6/pidgin=affected,rhel-7/pidgin=notaffected,fedora-all/pidgin=affected,cwe=CWE-190->CWE-122
Fixed In Version: pidgin 2.10.8 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-09-19 16:05:54 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 1058238, 1058239, 1058240, 1058242, 1058243, 1059049    
Bug Blocks: 1054257    
Description Flags
Local copy of patch none

Description Huzaifa S. Sidhpurwala 2014-01-24 03:46:54 EST
A Heap-based buffer overflow was found in the way pidgin processed chunked HTTP responses. A malicious server or man-in-the-middle could send a large value for Content-Length and cause an integer overflow which could lead to a buffer overflow. This could cause pidgin to crash or possibly execute arbitary code with the permissions of the user running pidgin.


Red Hat would like to thank the Pidgin project for reporting this issue. Upstream acknowledges Matt Jones of Volvent as the original reporter of this issue.
Comment 1 Huzaifa S. Sidhpurwala 2014-01-27 01:17:18 EST
Created attachment 855927 [details]
Local copy of patch
Comment 3 Vincent Danen 2014-01-28 15:49:19 EST
External References:

Comment 4 Huzaifa S. Sidhpurwala 2014-01-28 23:25:24 EST
Created pidgin tracking bugs for this issue:

Affects: fedora-all [bug 1059049]
Comment 5 errata-xmlrpc 2014-02-05 12:44:49 EST
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 2014-02-05 22:50:01 EST
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 02:59:36 EST
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.