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AUSCERT External Security Bulletin Redistribution
ESB-2009.0084 -- [Solaris]
A Solaris Kernel Security Vulnerability on Systems Using the Sun UltraSPARC
T2 and T2+ Processors May Allow Denial of Service (DoS)
29 January 2009
AusCERT Security Bulletin Summary
Publisher: Sun Microsystems
Operating System: Solaris
Impact: Denial of Service
Access: Existing Account
CVE Names: CVE-2009-0277
Revision History: January 29 2009: Added CVE
January 23 2009: Initial Release
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Solution Type: Sun Alert
Solution 250066 : A Solaris Kernel Security Vulnerability on
Systems Using the Sun UltraSPARC T2 and T2+ Processors May Allow
Denial of Service (DoS)
Bug ID: 6762012
Date of Resolved Release: 21-Jan-2009
SA Document Body
A Solaris Kernel Security Vulnerability on Systems Using the Sun
UltraSPARC T2 and T2+ Processors May Allow Denial of Service (DoS)
A security vulnerability in the sun4v kernel for Sun UltraSPARC T2 and
UltraSPARC T2+ systems may allow a local unprivileged user to panic
the system, which is a type of Denial of Service (DoS).
2. Contributing Factors
This issue can occur in the following releases:
* OpenSolaris based upon builds snv_100 through snv_102
for Sun UltraSPARC T2 and UltraSPARC T2+ systems.
1. Solaris 8 and 9 do not support the Sun UltraSPARC T2 or UltraSPARC
T2+ processor and thus are not impacted by this issue.
2. Solaris 10 is not impacted by this issue.
3. This issue only affects systems with a Sun UltraSPARC T2 or
UltraSPARC T2+ processor and therefore does not affect the x86
To determine if a system has either a Sun UltraSPARC T2 or UltraSPARC
T2+ processor, the following command can be run:
$ modinfo | grep SUNW,UltraSPARC-T2
If output is returned similiar to the following:
3 12c3d40 5450 - 0 SUNW,UltraSPARC-T2 ()
4 121c460 6520 - 0 SUNW,UltraSPARC-T2+ ()
then the system has a Sun UltraSPARC T2 or UltraSPARC T2+ processor.
If the described issue occurs, the system may panic with a stack trace
similar to the following:
panic[cpu16]/thread=30005406e80: bad stack overflow at TL 1
There is no workaround for this issue. Please see the Resolution
This issue is addressed in the following release:
* OpenSolaris based upon builds snv_103 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
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AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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information. It is being provided to you pursuant to the provisions of
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notification may only be used for the purposes contemplated by these
Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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