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AUSCERT External Security Bulletin Redistribution
ESB-2008.1142 -- [Solaris]
Security Vulnerability in Solaris IP Tunnel Parameter Processing May Lead
to a System Panic or Possible Execution of Arbitrary Code by
Unprivileged Users
30 December 2008
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AusCERT Security Bulletin Summary
---------------------------------
Product: Solaris 10
OpenSolaris
Publisher: Sun Microsystems
Operating System: Solaris
Impact: Execute Arbitrary Code/Commands
Denial of Service
Access: Remote/Unauthenticated
CVE Names: CVE-2008-5661 CVE-2008-5689
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-242266-1
Revision History: December 30 2008: Added additional CVE Reference
December 22 2008: Added CVE
December 19 2008: Initial Release
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Solution Type: Sun Alert
Solution 242266 : Security Vulnerability in Solaris IP Tunnel
Parameter Processing May Lead to a System Panic or Possible Execution
of Arbitrary Code by Unprivileged Users
Bug ID: 6606222
Product
Solaris 10 Operating System
OpenSolaris
Date of Resolved Release: 17-Dec-2008
SA Document Body
Security Vulnerability in Solaris IP Tunnel Parameter Processing May
Lead to a System Panic or Possible Execution of Arbitrary Code by
Unprivileged Users
1. Impact
A security vulnerability in the Solaris 10 IP tunnel parameter
processing (see tun(7M)) may allow a local unprivileged user the
ability to panic the system or execute arbitrary commands with all
(super-user) privileges. The ability to panic a system is a type of
Denial of Service (DoS).
Sun acknowledges with thanks, Tobias Klein (http://www.trapkit.de/)
for bringing this issue to our attention.
This issue is also referenced in the following document:
http://www.trapkit.de/advisories/TKADV2008-015.txt
2. Contributing Factors
This issue can occur in the following releases:
SPARC Platform
* Solaris 10 without patch 138888-01
* OpenSolaris based upon builds snv_01 through snv_76
x86 Platform
* Solaris 10 without patch 138889-01
* OpenSolaris based upon builds snv_01 through snv_76
Note: Solaris 8 and 9 are not impacted by this issue.
3. Symptoms
If the described issue occurs, the system may panic with a stack
strace similar to the following:
ip_sioctl_tunparam()
ip_process_ioctl()
ip_wput()
putnext()
putnext()
strdoioctl()
strioctl()
spec_ioctl()
fop_ioctl()
ioctl()
4. Workaround
There is no workaround for this issue. Please see the Resolution
section below.
5. Resolution
This issue is addressed in the following releases:
SPARC Platform
* Solaris 10 with patch 138888-01 or later
* OpenSolaris based upon builds snv_77 or later
x86 Platform
* Solaris 10 with patch 138889-01 or later
* OpenSolaris based upon builds snv_77 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
such an agreement, the Sun.com Terms of Use. This Sun Alert
notification may only be used for the purposes contemplated by these
agreements.
Copyright 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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