Note: This is an archival copy of Security Sun Alert 201395 as previously published on http://sunsolve.sun.com.
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1001068.1.
Article ID : 1001068.1
Article Type : Sun Alerts (SURE)
Last reviewed : 2006-12-20
Audience : PUBLIC
Copyright Notice: Copyright © 2010, Oracle Corporation and/or its affiliates.

A Security Vulnerability in the Solaris Kernel May Allow a Denial of Service (DoS) Condition to Occur

Category
Security

Release Phase
Resolved

Product
Solaris 9 Operating System
Solaris 10 Operating System
Solaris 8 Operating System

Bug Id
6272865

Date of Resolved Release
30-NOV-2006

Impact

A security vulnerability related to a race condition in the Solaris kernel may allow a local unprivileged user to panic the system, creating a Denial of Service (DoS) condition.


Contributing Factors

This issue can occur in the following releases:

SPARC Platform

  • Solaris 8 without patches 117350-40, 123703-01 and 116959-15
  • Solaris 9 without patches 118558-30, 117125-03, 121316-02 and 113278-14
  • Solaris 10 without patches 120661-03 and 118822-19

x86 Platform

  • Solaris 8 without patches 117351-40, 123704-01 and 116960-15
  • Solaris 9 without patches 118559-30, 120884-02, 121317-02 and 119439-06
  • Solaris 10 without patches 120662-04 and 118844-19

Note: Solaris 7 will not be evaluated regarding the potential impact of this issue.


Symptoms

A number of different types of panic can result making it difficult to quickly pinpoint this issue as the cause.

For example: if running the following command over a resulting crashdump (by default written to /var/crash/<uname -n>, see dumpadm(1M)):

    # echo "::walk thread | ::findstack ! grep exitlwps" | mdb unix.0 vmcore.0

produces any matches similar to the following:

    000002a100e38fc1 exitlwps+0x114()

then it is likely that this issue has occurred.


Workaround

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


Resolution

This issue is addressed in the following releases:

SPARC Platform

  • Solaris 8 with patches 117350-40 or later, 123703-01 or later and 116959-15 or later
  • Solaris 9 with patches 118558-30 or later, 117125-03 or later, 121316-02 or later and 113278-14 or later
  • Solaris 10 with patches 120661-03 or later and 118822-19 or later

x86 Platform

  • Solaris 8 with patches 117351-40 or later, 123704-01 or later and 116960-15 or later
  • Solaris 9 with patches 118559-30 or later, 120884-02 or later, 121317-02 or later and 119439-06 or later
  • Solaris 10 with patches 120662-04 or later and 118844-19 or later

Note: Solaris 8 patch 123703-01 has been accumulated into 117350-41 and 123704-01 has been accumulated into 117351-41



References

118558-30
117125-03
121316-02
113278-14
118559-30
120884-02
121317-02
119439-06
117350-40
116959-15
117351-40
116960-15




Attachments
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