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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: 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