Bug 1348441 (CVE-2016-4301)

Summary:	CVE-2016-4301 libarchive: Stack buffer overflow in the mtree parse_device
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dmoppert, ndevos, praiskup, sardella, slawomir
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libarchive 3.2.1	Doc Type:	Bug Fix
Doc Text:	An exploitable stack based buffer overflow vulnerability exists in the mtree parse_device functionality of libarchive. A specially crafted mtree file can cause a buffer overflow resulting in memory corruption and potential code execution in the context of the application.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-06-23 03:06:00 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:
Bug Blocks:	1334215

Description Andrej Nemec 2016-06-21 07:55:14 UTC

An exploitable stack based buffer overflow vulnerability exists in the mtree parse_device functionality of libarchive. A specially crafted mtree file can cause a buffer overflow resulting in memory corruption/code execution. An attacker can send a malformed file to trigger this vulnerability.

External references:

http://www.talosintel.com/reports/TALOS-2016-0153/

Upstream fix:

https://github.com/libarchive/libarchive/commit/a550daeecf6bc689ade371349892ea17b5b97c77

Comment 1 Doran Moppert 2016-06-22 06:16:38 UTC

Contrary to the Talos advisory, the affected code was only introduced after
the release of v3.1.2.  Thus no Red Hat packages are affected.