A Security Vulnerability in the USB Mouse STREAMS Module May Lead to a System Panic

A security vulnerability in the USB Mouse STREAMS module (usbms(7M)) may allow a local unprivileged user to panic the system.

Document Audience: PUBLIC
Document ID: 201316
Title: A Security Vulnerability in the USB Mouse STREAMS Module May Lead to a System Panic
Copyright Notice: Copyright © 2008 Sun Microsystems, Inc. All Rights Reserved
Update Date: Tue Feb 05 00:00:00 MST 2008

Solution Type Sun Alert

Solution  201316 :   A Security Vulnerability in the USB Mouse STREAMS Module May Lead to a System Panic  


Bug ID
6584571
Product
Solaris 9 Operating System  Solaris 10 Operating System
Date of Resolved Release
05-FEB-2008
SA Document Body
A Security Vulnerability in the USB Mouse STREAMS Module May Lead to a System Panic (see details below)

1. Impact

A security vulnerability in the USB Mouse STREAMS module (usbms(7M)) may allow a local unprivileged user to panic the system. This is a type of Denial of Service (DoS).

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

x86 Platform

Note:   Solaris 8 is not impacted by this issue.

This issue only affects systems running in 64-bit mode.  To determine if a system is running in 64-bit mode, the following command can be run:
    $ isainfo -b
64
This issue only affects systems which have a USB mouse connected. To determine if a USB mouse is connected to the system, the following command can be run:
    $ cfgadm | grep usb-mouse || echo "System not impacted"

3. Symptoms

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

    BAD TRAP: type=e (#pf Page fault) rp=fffffe8000a4a970 addr=100000027 
    occurred in module "genunix" due to an illegal access to a user address

And a stack trace similar to the following:

    freemsg+0x47(ffffffff)
    usbms_miocdata+0x1f7(fffffffec4852648, fffffffec8995ea0)
    usbms_wput+0xad(fffffffec4852648, fffffffec8995ea0)
    putnext+0x2f1(fffffffec4852b98, fffffffec8995ea0)
    consmslwserv+0x37(fffffffec4852b98)
    runservice+0x59(fffffffec4852b98)
    queue_service+0x57(fffffffec4852b98)
    stream_service+0xdc(fffffffec42164a0)
    taskq_d_thread+0xc6(fffffffec4225060)
    thread_start+8()

4. Relief/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

x86 Platform

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 2000-2008 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.