Bug 1316133 (CVE-2016-2851)

Summary:	CVE-2016-2851 libotr: Integer overflow when receiving messages bigger than 4GB
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:49:32 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:	1316261, 1316262, 1316263, 1316264
Bug Blocks:

Description Adam Mariš 2016-03-09 13:47:37 UTC

Integer overflow vulnerability occurs when comparing int and size_t variable types triggered by receiving messages larger than 4GB. This can cause buffer overflow that could lead to code execution.

Product bug:

https://bugzilla.redhat.com/show_bug.cgi?id=1315247

Comment 1 Kurt Seifried 2016-03-09 18:58:46 UTC

This is now public:

https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.html

Comment 2 Kurt Seifried 2016-03-09 19:47:08 UTC

Created libotr tracking bugs for this issue:

Affects: fedora-all [bug 1316261]
Affects: epel-all [bug 1316263]

Comment 3 Kurt Seifried 2016-03-09 19:47:14 UTC

Created libotr3 tracking bugs for this issue:

Affects: fedora-all [bug 1316262]
Affects: epel-all [bug 1316264]

Comment 4 Andrej Nemec 2016-03-10 08:30:04 UTC

External references:

http://seclists.org/oss-sec/2016/q1/568

Comment 5 Product Security DevOps Team 2019-06-08 02:49:32 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.