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Category:   Application (Generic)  >   X Vendors:   X.org
(OpenBSD Issues Fix) X11 Overflows Let Local Users Gain Root Privileges
SecurityTracker Alert ID:  1017877
SecurityTracker URL:  http://securitytracker.com/id/1017877
CVE Reference:   CVE-2007-1003, CVE-2007-1351, CVE-2007-1352   (Links to External Site)
Date:  Apr 5 2007
Impact:   Execution of arbitrary code via local system, Root access via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7.2 and prior versions
Description:   Several vulnerabilities were reported in X. A local user can obtain elevated privileges on the target system.

A local user can trigger an integer overflow in the processing of BDF fonts to execute arbitrary code on the target system with root privileges [CVE-2007-1351].

A local user can trigger an integer overflow in 'fonts.dir' to execute arbitrary code on the target system with root privileges [CVE-2007-1352].

A local user can trigger an integer overflow in the XC-MISC extension to execute arbitrary code on the target system with root privileges [CVE-2007-1003].

Sean Larsson of iDefense Labs discovered the XC-MISC extension vulnerability. iDefense reported the other two vulnerabilities.

Impact:   A local user can obtain root privileges on the target system.
Solution:   OpenBSD has issued the following patches.

ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/021_xorg.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.0/common/011_xorg.patch

Vendor URL:  wiki.x.org/wiki/Development/Security?action=show&redirect=SecurityPage (Links to External Site)
Cause:   Boundary error
Underlying OS:  UNIX (OpenBSD)
Underlying OS Comments:  3.9, 4.0

Message History:   This archive entry is a follow-up to the message listed below.
Apr 3 2007 X11 Overflows Let Local Users Gain Root Privileges



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