Bug 1037984 (CVE-2013-6424)

Summary:	CVE-2013-6424 xorg-x11-server: integer underflow when handling trapezoids
Product:	[Other] Security Response	Reporter:	Murray McAllister <mmcallis>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	ajax, jkurik, jrusnack, pfrields, ratulg, sandmann, vdanen, xgl-maint
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:	2013-12-24 05:24:24 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	1043751, 1043752, 1043753, 1043754, 1043755, 1043756
Bug Blocks:	1037986

Description Murray McAllister 2013-12-04 08:23:47 UTC

An integer underflow flaw was found in the X.Org server when handling trapezoids. A malicious, authorized client could use this flaw to crash the X.Org server.

References:
http://seclists.org/oss-sec/2013/q4/399
http://patchwork.freedesktop.org/patch/14769/

Comment 4 Huzaifa S. Sidhpurwala 2013-12-17 04:47:31 UTC

Note:

On Further investigation it was discovered that there may be a possibility of arbitrary user controlled code execution in this particular flaw. Security impact and the cvss2 scoring has been adjusted accordingly.

Comment 6 Huzaifa S. Sidhpurwala 2013-12-17 05:06:36 UTC

Created xorg-x11-server tracking bugs for this issue:

Affects: fedora-all [bug 1043751]

Comment 8 errata-xmlrpc 2013-12-20 10:59:31 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 5

Via RHSA-2013:1868 https://rhn.redhat.com/errata/RHSA-2013-1868.html