Bug 1348854 (CVE-2016-2378)

Summary:	CVE-2016-2378 pidgin: MXIT get_utf8_string Code Execution Vulnerability
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	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 02:55:22 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 08:31:17 UTC

A buffer overflow vulnerability exists in the handling of the MXIT protocol Pidgin. Specially crafted data sent via the server could potentially result in a buffer overflow, potentially resulting in memory corruption. A malicious server or an unfiltered malicious user can send negative length values to trigger this vulnerability.

External references:

http://www.talosintel.com/reports/TALOS-2016-0120/
http://www.pidgin.im/news/security/?id=94

Upstream fix:

https://bitbucket.org/pidgin/main/commits/06278419c703