Note: This is an archival copy of Security Sun Alert 260449 as previously published on http://sunsolve.sun.com.
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1020542.1.
Article ID : 1020542.1
Article Type : Sun Alerts (SURE)
Last reviewed : 2009-06-17
Audience : PUBLIC
Copyright Notice: Copyright © 2010, Oracle Corporation and/or its affiliates.

Two Race Condition Vulnerabilities in the Solaris Event Port API May Allow Local Users to Panic the System, Causing a Denial of Service (DoS)

Category
Security

Release Phase
Resolved

Bug Id
6736713, 6790056

Product
Solaris 10 Operating System
OpenSolaris

Date of Resolved Release
18-Jun-2009

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 1009886.1.

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.

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References

141414-01
141415-01





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