Multiple vulnerabilities have been discovered in the X.Org X server, possibly allowing for the remote execution of arbitrary code with root privileges.
|Package||x11-base/xorg-server on all architectures|
|Affected versions||< 184.108.40.206-r6|
|Unaffected versions||>= 220.127.116.11-r6|
The X Window System is a graphical windowing system based on a client/server model.
Regenrecht reported multiple vulnerabilities in various X server extensions via iDefense:
Exploitation of these vulnerabilities could possibly lead to the remote execution of arbitrary code with root privileges, if the server is running as root, which is the default. It is also possible to crash the server by making use of these vulnerabilities.
It is possible to avoid these vulnerabilities by disabling the affected server extensions. Therefore edit the configuration file (/etc/X11/xorg.conf) to contain the following in the appropriate places:
Section "Extensions" Option "MIT-SHM" "disable" Option "RENDER" "disable" Option "SECURITY" "disable" EndSection Section "Module" Disable "record" EndSection
All X.org X Server users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-18.104.22.168-r6"
June 19, 2008
June 19, 2008: 01