Bug Id
6756058

Product
OpenSolaris

Date of Resolved Release
26-Mar-2009

A security vulnerability in OpenSolaris may allow a privileged user inside a non-global zone to execute arbitrary code within a global zone:

1. Impact

Local privileged users inside a non-global zone may be able to execute arbitrary code within a global zone if an mdb process within the global zone attaches to a non-global zone process. The code would be executed with the privileges of the user running mdb, which could potentially be root.

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

• OpenSolaris based upon builds snv_100 through snv_101
  

x86 Platform

• OpenSolaris based upon builds snv_100 through snv_101

Note 1: Solaris 8, 9 and 10 are not impacted by this issue.

Note 2: 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

There are no predictable symptoms that would indicate the described issue has been exploited.

4. Workaround

To avoid this issue, do not use mdb from the global zone to debug processes in the non-global zone.

5. Resolution

This issue is addressed in the following releases:

SPARC Platform

• OpenSolaris based upon builds snv_102 or later

x86 Platform

• OpenSolaris based upon builds snv_102 or later
  

For more information on Security Sun Alerts, see 1009886.1.

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