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Category:   Application (Generic)  >   Xserver Vendors:   X.org
(IBM Issues Fix for IBM AIX) Xserver Use-After-Free in Processing ImageText Requests Lets Remote Authenticated Users Deny Service
SecurityTracker Alert ID:  1029658
SecurityTracker URL:  http://securitytracker.com/id/1029658
CVE Reference:   CVE-2013-4396   (Links to External Site)
Date:  Jan 22 2014
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Xserver. A remote authenticated user can cause denial of service conditions.

A remote authenticated X client can trigger a use-after-free memory error in the processing of ImageText requests to cause the target X server to crash.

Pedro Ribeiro reported this vulnerability.

Impact:   A remote authenticated user can cause the target X server to crash.
Solution:   IBM has issued a fix for IBM AIX.

5.3.12: APAR IV53331
6.1.7: APAR IV52181
6.1.8: APAR IV52184
7.1.1: APAR IV52185
7.1.2: APAR IV52186

The IBM advisory is available at:

http://aix.software.ibm.com/aix/efixes/security/xorg_advisory2.asc

Vendor URL:  x.org/ (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (AIX)
Underlying OS Comments:  5.3, 6.1, 7.1

Message History:   This archive entry is a follow-up to the message listed below.
Oct 8 2013 Xserver Use-After-Free in Processing ImageText Requests Lets Remote Authenticated Users Deny Service



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