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Category:   Application (Generic)  >   X Vendors:   X.org
X.org Xserver mod() Calculation Error Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1023929
SecurityTracker URL:  http://securitytracker.com/id/1023929
CVE Reference:   CVE-2010-1166   (Links to External Site)
Date:  Apr 28 2010
Impact:   Execution of arbitrary code via network, Root access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in X.org Xserver. A remote user can execute arbitrary code on the target system.

The X.Org Render extension contains a calculation flaw in the mod() function. A remote authorized client can send specially crafted data to the connected X server to cause the target X server to crash or execute arbitrary code with root privileges.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The upstream vendor has issued a fix, available at:

http://cgit.freedesktop.org/xorg/xserver/commit/?id=d2f813f7db

[Editor's note: The flaw was introduced in 2005 and corrected in 2007.]

Vendor URL:  x.org/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Apr 28 2010 (Red Hat Issues Fix) X.org Xserver mod() Calculation Error Lets Remote Users Execute Arbitrary Code
Red Hat has issued a fix for Red Hat Enterprise Linux 5.
Aug 24 2010 (Sun Issues Fix) X.org Xserver mod() Calculation Error Lets Remote Users Execute Arbitrary Code
Sun has issued a fix for Solaris 10.



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