Users in lx(5) Branded Zones May be Able to Panic Solaris 10 x86 Systems

An unprivileged local user within a Linux branded zone (see lx(5)) may be able to panic Solaris 10 x86 systems running in 64bit mode. Being able to panic a system is a type of Denial of Service (DoS).

Document Audience: PUBLIC
Document ID: 103153
Title: Users in lx(5) Branded Zones May be Able to Panic Solaris 10 x86 Systems
Copyright Notice: Copyright © 2007 Sun Microsystems, Inc. All Rights Reserved
Update Date: Fri Nov 30 00:00:00 MST 2007

Status Issued
Description  
Sun(sm) Alert Notification
  • Sun Alert ID: 103153
  • Synopsis: Users in lx(5) Branded Zones May be Able to Panic Solaris 10 x86 Systems
  • Category: Security
  • Product: Solaris 10 Operating System
  • BugIDs: 6590340
  • Avoidance: Patch
  • State: Resolved
  • Date Released: 30-Nov-2007
  • Date Closed: 30-Nov-2007
  • Date Modified:

1. Impact

An unprivileged local user within a Linux branded zone (see lx(5)) may be able to panic Solaris 10 x86 systems running in 64bit mode. Being able to panic a system is a type of Denial of Service (DoS).

2. Contributing Factors

The issue can occur in the following releases:

x86 Platform

  • Solaris 10 with patch 120012-01 and without patch 127112-04

Note 1: This issue only occurs on systems with Linux branded zones (see lx(5)) installed. Solaris 8 and Solaris 9 do not provide support for Linux branded zones and are not impacted by this issue.

Note 2: This issue only affects systems running in 64-bit mode.

To determine if an lx(5) branded zone is installed on a Solaris system, the following command can be run:

    $ zoneadm list -ip |cut -d: -f6 | grep lx || echo "No lx brand zones on system"  

To determine if a system is running in 64-bit mode, the following command can be run:

    $ isainfo -b
    64

 

3. Symptoms

There are no predictable symptoms that would indicate the described issue has been exploited, other than the system panic itself.


Solution Summary  

4. Relief/Workaround

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


5. Resolution

This issue is resolved in the following release:

x86 Platform

  • Solaris 10 with patch 127112-04 or later

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.

Copyright 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.

Telegram Подписывайтесь на канал "SecurityLab" в Telegram, чтобы первыми узнавать о новостях и эксклюзивных материалах по информационной безопасности.