Red Hat has issued an update for XFree86. This fixes some vulnerabilities, which can be exploited by malicious, local users to cause a DoS (Denial of Service), disclose potentially sensitive information, or to gain escalated privileges.

For more information:
SA30627

Solution
Updated packages are available via Red Hat Network.
Further details available to Secunia VIM customers

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers