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AUSCERT External Security Bulletin Redistribution
ESB-2009.0589 -- [Solaris][OpenSolaris]
Solaris Event Port API: Denial of Service
22 June 2009
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AusCERT Security Bulletin Summary
---------------------------------
Product: Solaris 10 Operating System
OpenSolaris
Publisher: Sun Microsystems
Operating System: Solaris
OpenSolaris
Impact: Denial of Service
Access: Existing Account
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-260449-1
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Solution Type: Sun Alert
Solution 260449 : Two Race Condition Vulnerabilities in the Solaris
Event Port API May Allow Local Users to Panic the System, Causing a
Denial of Service (DoS)
Bug ID: 6736713, 6790056
Product
Solaris 10 Operating System
OpenSolaris
Date of Resolved Release: 18-Jun-2009
SA Document Body
Two Race Condition Vulnerabilities in the Solaris Event Port API May Allow
Local Users to Panic the System, Causing a Denial of Service (DoS)
1. Impact
Two race condition vulnerabilities in the Solaris Event Port API may
allow a local unprivileged user to panic the system, which is a type
of Denial of Service (DoS).
2. Contributing Factors
These issues can occur in the following releases:
SPARC Platform:
* Solaris 10 without patch 141414-01
* OpenSolaris based upon builds snv_01 through snv_106
x86 Platform:
* Solaris 10 without patch 141415-01
* OpenSolaris based upon builds snv_01 through snv_106
Note: Solaris 8 and Solaris 9 are not impacted by these issues.
OpenSolaris distributions may include additional bug fixes above and
beyond the build from which it was derived. The base build can be
derived as follows:
$ uname -v
snv_86
3. Symptoms
If the described issues occur, the system may panic with a stack trace
similar to one of the following:
unix:panicsys+0x48()
unix:vpanic_common+0x78()
unix:panic+0x1c()
unix:mutex_enter()
portfs:port_associate_fd+0x2d4()
portfs:portfs+0x234()
unix:syscall_trap32+0xcc()
pollhead_delete+0x40()
port_remove_fd_object+0x38()
port_dissociate_fd+0x118()
portfs+0x350()
syscall_trap32+0x1e8()
4. Workaround
There is no workaround for these issues. Please see the Resolution
section below.
5. Resolution
These issues are addressed in the following releases:
SPARC Platform:
* Solaris 10 with patch 141414-01 or later
* OpenSolaris based upon builds snv_107 or later
x86 Platform:
* Solaris 10 with patch 141415-01 or later
* OpenSolaris based upon builds snv_107 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 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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