Security Vulnerability in Solaris pollwakeup(9F) May Allow an Unprivileged User to Panic the System

1. Impact

A security vulnerability in Solaris pollwakeup(9F) may allow a local unprivileged user
to panic the system and thereby cause a denial of service.

Sun acknowledges, with thanks, Jason Hoos for bringing this issue to our attention.

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

• Solaris 10 without patch 141414-09
• OpenSolaris based upon builds snv_01 through snv_50
  

x86 Platform

• Solaris 10 without patch 141415-09
• OpenSolaris based upon builds snv_01 through snv_50
  

Note: Solaris 8 and 9 are not impacted by this issue.

OpenSolaris distributions may include additional fixes above and beyond the build
from which it was derived. The base build can be derived as follows:

            $ uname -v
            snv_111

3. Symptoms

If the described issues occur, the system may panic with a stack trace similar to one of the following:

	vpanic()
	mutex_vector_enter+0x350()
	pollwakeup+0x20()
	port_send_event+0x114()
 	pollwakeup+0xc4()

4. Relief/Workaround

There is no workaround to this issue. Please see the Resolution section below.

5. Resolution

This issue is addressed in the following releases:

SPARC Platform

• Solaris 10 with patch 141414-09 or later
• OpenSolaris based upon builds snv_51 or later
  

x86 Platform

• Solaris 10 with patch 141415-09 or later
• OpenSolaris based upon builds snv_51 or later
  

For more information on Security Sun Alerts, see Technical Instruction ID 213557
http://sunsolve.sun.com/search/document.do?assetkey=1-61-213557-1

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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