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Category:   Application (Generic)  >   X Vendors:   X.org
(OpenBSD Issues Fix) X Integer Overflow in AllocateGlyph() Lets Local Users and Remote Authenticated Users Execute Arbitrary Code
SecurityTracker Alert ID:  1020522
SecurityTracker URL:  http://securitytracker.com/id/1020522
CVE Reference:   CVE-2008-2360   (Links to External Site)
Date:  Jul 18 2008
Impact:   Execution of arbitrary code via network, Root access via local system, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): X11R7.3
Description:   A vulnerability was reported in the X Window System. A remote authenticated user can execute arbitrary code on the target system. A local user can obtain elevated privileges on the target system.

A remote authenticated user can send specially crafted data to trigger an integer overflow in the AllocateGlyph() function and execute arbitrary code on the target X server. The code will run with the privileges of the target server (which may be root privileges on many systems).

A local user can execute arbitrary commands on the target system with elevated privileges.

The RENDER Extension is affected.

The vendor was notified on March 26, 2008.

regenrecht reported this vulnerability via iDefense.

Impact:   A remote authenticated user can execute arbitrary code on the target system.

A local user can obtain elevated privileges on the target system.

Solution:   OpenBSD has issued the following patches:

ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.2/common/012_xorg2.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.3/common/003_xorg.patch

The OpenBSD advisories are available at:

http://www.openbsd.org/errata42.html
http://www.openbsd.org/errata43.html

Vendor URL:  x.org/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  UNIX (OpenBSD)
Underlying OS Comments:  4.2, 4.3

Message History:   This archive entry is a follow-up to the message listed below.
Jun 11 2008 X Integer Overflow in AllocateGlyph() Lets Local Users and Remote Authenticated Users Execute Arbitrary Code



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