Medium: xorg-x11-server

Issue Overview:

A buffer over-read flaw was found in the way the X.Org server handled XkbGetGeometry requests. A malicious, authorized client could use this flaw to disclose portions of the X.Org server memory, or cause the X.Org server to crash using a specially crafted XkbGetGeometry request. (CVE-2015-0255)

Affected Packages:

xorg-x11-server

Issue Correction:
Run yum update xorg-x11-server to update your system.

New Packages:

i686:  
    xorg-x11-server-Xnest-1.15.0-26.41.amzn1.i686  
    xorg-x11-server-Xorg-1.15.0-26.41.amzn1.i686  
    xorg-x11-server-devel-1.15.0-26.41.amzn1.i686  
    xorg-x11-server-Xephyr-1.15.0-26.41.amzn1.i686  
    xorg-x11-server-Xvfb-1.15.0-26.41.amzn1.i686  
    xorg-x11-server-Xdmx-1.15.0-26.41.amzn1.i686  
    xorg-x11-server-common-1.15.0-26.41.amzn1.i686  
    xorg-x11-server-debuginfo-1.15.0-26.41.amzn1.i686  
  
noarch:  
    xorg-x11-server-source-1.15.0-26.41.amzn1.noarch  
  
src:  
    xorg-x11-server-1.15.0-26.41.amzn1.src  
  
x86_64:  
    xorg-x11-server-Xorg-1.15.0-26.41.amzn1.x86_64  
    xorg-x11-server-Xvfb-1.15.0-26.41.amzn1.x86_64  
    xorg-x11-server-Xdmx-1.15.0-26.41.amzn1.x86_64  
    xorg-x11-server-debuginfo-1.15.0-26.41.amzn1.x86_64  
    xorg-x11-server-devel-1.15.0-26.41.amzn1.x86_64  
    xorg-x11-server-Xephyr-1.15.0-26.41.amzn1.x86_64  
    xorg-x11-server-common-1.15.0-26.41.amzn1.x86_64  
    xorg-x11-server-Xnest-1.15.0-26.41.amzn1.x86_64  

Additional References

Red Hat: CVE-2015-0255

Mitre: CVE-2015-0255