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AUSCERT External Security Bulletin Redistribution
ESB-2007.0790 -- [Solaris]
Multiple Security Vulnerabilities in the Solaris Tag Image
File Format Library libtiff(3)
5 September 2007
AusCERT Security Bulletin Summary
Product: Solaris 10 Operating System
Solaris 9 Operating System
Solaris 8 Operating System
Publisher: Sun Microsystems
Operating System: Solaris
Impact: Execute Arbitrary Code/Commands
Denial of Service
CVE Names: CVE-2006-2024 CVE-2006-2025 CVE-2006-2026
Revision History: September 5 2008: Updated resolution section
detailing patches available for
December 3 2007: Updated the Contributing Factors
section to list vulnerable releases.
Updated the Resolution section to
include the patch for Solaris 9.
November 14 2007: Updated the Impact section to
correct the CVE references.
October 15 2007: Initial Release
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Solution Type: Sun Alert
Solution 201332 : Multiple Security Vulnerabilities in the Solaris
Tag Image File Format Library libtiff(3)
Previously Published As: 103099
Solaris 9 Operating System
Solaris 10 Operating System
Solaris 8 Operating System
Bug ID: 6412202
Date of Workaround Release: 11-OCT-2007
Date of Resolved Release: 03-Sep-2008
SA Document Body
Multiple Security Vulnerabilities in the Solaris Tag Image File Format
Multiple security vulnerabilities in the Solaris Tag Image File Format
library (libtiff(3)) may allow a local or remote unprivileged user to
crash applications that dynamically link to the "libtiff" library and
execute arbitrary code with the privileges of a local user. The
ability to crash an application that links to the "libtiff" library is
a type of Denial of Service (DoS). Solaris ships several applications
as part of the GNOME Desktop Environment that dynamically link with
the "libtiff" library.
These issues are described in the following documents:
Sun acknowledges with thanks, Tavis Ormandy from the Google Security
Team for bringing these issues to our attention.
2. Contributing Factors
These issues can occur in the following releases:
* Solaris 8 without patch 139093-01
* Solaris 9 without patch 125673-01
* Solaris 10 without patch 119900-03
* Solaris 8 without patch 139094-01
* Solaris 9 without patch 125674-01
* Solaris 10 without patch 119901-03
There are no predictable symptoms that would indicate these issues
have been exploited to cause a Denial of Service or execute arbitrary
code with the privileges of a local user.
The stack overflow security issues referenced in this document may be
worked around by using the "noexec_user_stack" option. This can be
achieved by editing the "/etc/system" file and adding the following
set noexec_user_stack = 1
set noexec_user_stack_log = 1
Note: A reboot will be necessary in order for this change to take
effect. See system(4) for more information on modifying the
To workaround the remaining issues described in this document, do not
load images from untrusted sources.
This issue is addressed in the following releases:
* Solaris 8 with patch 139093-01 or later
* Solaris 9 with patch 125673-01 or later
* Solaris 10 with patch 119900-03 or later
* Solaris 8 with patch 139094-01 or later
* Solaris 9 with patch 125674-01 or later
* Solaris 10 with patch 119901-03 or later
For more information on Security Sun Alerts, see Technical
Instruction ID 213557.
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 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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