Bug Id
6797746

Product
Solaris 10 Operating System
OpenSolaris

Date of Resolved Release
13-Mar-2009

Security vulnerability in the Solaris keysock kernel module may lead to a system panic

1. Impact

A security vulnerability in the Solaris 10 keysock kernel module may allow local users with sufficient privileges to create PF_KEY (see pf_key(7P)) sockets to be able to cause a system panic thereby resulting in a Denial of Service (DoS) to the system as a whole.

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

• Solaris 10 without patch 141008-01
  
• OpenSolaris based upon builds snv_01 through snv_108

x86 Platform

• Solaris 10 without patch 141009-01
• OpenSolaris based upon builds snv_01 through snv_108

Note: OpenSolaris distributions may include additional bug fixes above and beyond the build from which it was derived.  To determine the base build of OpenSolaris, the following command can be used:

    $ uname -v
    snv_86

3. Symptoms

If the described issue occurs, the system may panic with a stack trace similar to the following:

   vpanic()
   mutex_vector_enter()
   keysock_opt_set()
   svr4_optcom_req()
   keysock_wput_other()
   putnext()
   strput()
   kstrputmsg()
   sotpi_setsockopt()
   setsockopt()
   syscall_trap32()

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 141008-01 or later
  
• OpenSolaris based upon builds snv_109 or later
  

x86 Platform

• Solaris 10 with patch 141009-01 or later
  
• OpenSolaris based upon builds snv_109 or later

For more information on Security Sun Alerts, see 1009886.1.

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References

141008-01
141009-01





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