X.Org X server: Multiple vulnerabilities

X.Org X server: Multiple vulnerabilities Sean Larsson from iDefense Labs has found multiple vulnerabilities in the DBE and Render extensions. X.Org January 27, 2007 February 26, 2007: 02 157421 local 1.1.1-r4 1.1.1-r4

The X Window System is a graphical windowing system based on a client/server model.

Multiple memory corruption vulnerabilities have been found in the ProcDbeGetVisualInfo() and the ProcDbeSwapBuffers() of the DBE extension, and ProcRenderAddGlyphs() in the Render extension.

A local attacker could execute arbitrary code with the privileges of the user running the X server, typically root.

Disable the DBE extension by removing the "Load dbe" directive in the Module section of xorg.conf, and explicitly disable the Render extension with ' Option "RENDER" "disable" ' in the Extensions section.

Note: This could affect the functionality of some applications.

All X.Org X server users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-1.1.1-r4"

CVE-2006-6101 CVE-2006-6102 CVE-2006-6103 daxomatic vorlon