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AUSCERT External Security Bulletin Redistribution
ESB-2006.0320 -- [Solaris]
Security Vulnerability in the Xorg(1) Version of the Render Extension
25 May 2006
AusCERT Security Bulletin Summary
Publisher: Sun Microsystems
Operating System: Solaris 10
Impact: Root Compromise
Access: Existing Account
CVE Names: CVE-2006-1526
Revision History: May 25 2006: Updates to Contributing Factors,
Relief/Workaround,and Resolution sections
May 8 2006: Initial Release
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Sun(sm) Alert Notification
* Sun Alert ID: 102339
* Synopsis: Security Vulnerability in the Xorg(1) Version of the
* Category: Security
* Product: Solaris 10 Operating System
* BugIDs: 6416841
* Avoidance: Workaround, Patch
* State: Resolved
* Date Released: 04-May-2006, 17-May-2006
* Date Closed: 17-May-2006
* Date Modified: 17-May-2006
The Xorg X server (see Xorg(1)) is one of the X Window System display
servers available on the Solaris x86 platform. A buffer overflow in
the X Render extension may allow an unprivileged local or remote user
who is a client of the Xorg X server the ability to execute arbitrary
code with the privileges of the Xorg server. The Xorg X server runs
with root privileges on Solaris.
This issue is described in the following documents:
* CVE-2006-1526 at:
2. Contributing Factors
This issue can occur in the following release:
* Solaris 10 without patch 118966-20
Note: Solaris 8 and Solaris 9 are not affected by this issue. Solaris
10 on the SPARC platform is also not affected.
The described issue only occurs on systems with the SUNWxorg packages
installed. To determine if the SUNWxorg packages are installed on the
system, the following command can be used:
There are no predictable symptoms that would show the described issue
has been exploited.
To work around the described issue, disable the Render extension by
putting the following in the xorg.conf(4) file:
Option "RENDER" "disable"
Note: After applying this workaround, applications requiring the
Render extension may not run.
This issue is addressed in the following release:
* Solaris 10 with patch 118966-20 or later
* State: Resolved
* Updated Contributing Factors, Relief/Workaround, and Resolution
This Sun Alert notification is being provided to you on an "AS IS"
basis. This Sun Alert notification may contain information provided by
third parties. The issues described in this Sun Alert notification may
or may not impact your system(s). Sun makes no representations,
warranties, or guarantees as to the information contained herein. ANY
AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
This Sun Alert notification contains Sun proprietary and confidential
information. It is being provided to you pursuant to the provisions of
your agreement to purchase services from Sun, or, if you do not have
notification may only be used for the purposes contemplated by these
Copyright 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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