Bug 1348848 (CVE-2016-2376)

Summary: CVE-2016-2376 pidgin: MXIT read stage 0x3 Code Execution Vulnerability
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: cschalle, debarshir, itamar, jskarvad, jsynacek, mbarnes, stu
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: pidgin 2.11.0 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-08 02:55:19 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: 1350338, 1403136    
Bug Blocks: 1348890    

Description Andrej Nemec 2016-06-22 08:24:20 UTC
A buffer overflows vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent from the server could potentially result in arbitrary code execution. A malicious server or an attacker who intercepts the network traffic can send an invalid size for a packet which will trigger a buffer overflow.

External references:

http://www.talosintel.com/reports/TALOS-2016-0118/
http://www.pidgin.im/news/security/?id=92

Upstream fix:

https://bitbucket.org/pidgin/main/commits/19f89eda8587