Bug 1209943 (CVE-2013-7439)

Summary:	CVE-2013-7439 libX11: buffer overflow in MakeBigReq macro
Product:	[Other] Security Response	Reporter:	Vasyl Kaigorodov <vkaigoro>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	ajax, huzaifas, jrusnack, magoldma, opensource, sandmann
Target Milestone:	---	Keywords:	Reopened, Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libX11 1.5.99.901	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-08-22 06:34:44 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:	1209944

Description Vasyl Kaigorodov 2015-04-08 13:36:54 UTC

The MakeBigReq macro in libX11 before version 1.5.99.901 contained a 4-byte buffer overflow:

https://bugs.freedesktop.org/show_bug.cgi?id=56508

Fixed by the following commit in libX11 1.5.99.901:

http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=39547d600a13713e15429f49768e54c3173c828d

CVE request: http://seclists.org/oss-sec/2015/q2/73

Comment 1 Huzaifa S. Sidhpurwala 2015-04-09 06:27:55 UTC

Statement:

This issue does not affect the version of libX11 package as shipped with Red Hat Enterprise Linux 7.

This issue was was fixed in Red Hat Enterprise Linux 6 via the following security advisory:

https://rhn.redhat.com/errata/RHSA-2014-1436.html

This issue affects the version of libX11 package as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Extended Life Cycle phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates.

Comment 2 Huzaifa S. Sidhpurwala 2015-04-09 07:13:54 UTC

This issue was assigned CVE-2013-7439 via 

http://www.openwall.com/lists/oss-security/2015/04/09/1

Comment 3 Till Maas 2015-04-15 16:28:16 UTC

According to http://lists.x.org/archives/xorg-announce/2015-April/002561.html a rebuild of all software using the vulnerable version of the macros is required. Is this tracked somewhere or did this already happen? Did this happen for EPEL?