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AUSCERT External Security Bulletin Redistribution
ESB-2007.0640 -- [Solaris]
Security Vulnerabilities in the ata(7D) Disk Driver May Lead
to a Denial of Service Condition
24 August 2007
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AusCERT Security Bulletin Summary
---------------------------------
Product: ata(7D) disk driver
Publisher: Sun Microsystems
Operating System: Solaris 10
Solaris 9
Solaris 8
Impact: Denial of Service
CVE Names: CVE-2007-4492 CVE-2007-4495
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102988-1
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Sun(sm) Alert Notification
* Sun Alert ID: 102988
* Synopsis: Security Vulnerabilities in the ata(7D) Disk Driver May
Lead to a Denial of Service Condition
* Category: Security
* Product: Solaris 9 Operating System, Solaris 10 Operating System,
Solaris 8 Operating System
* BugIDs: 6433123, 6433124
* Avoidance: Patch
* State: Resolved
* Date Released: 21-Aug-2007
* Date Closed: 21-Aug-2007
* Date Modified:
1. Impact
Security vulnerabilities in certain ioctl(2) functions in the ata(7D)
disk driver may allow a local unprivileged user to panic the system,
causing a Denial of Service (DoS) condition.
2. Contributing Factors
These issues can occur in the following releases:
x86 Platform
* Solaris 8 without patch 109798-04
* Solaris 9 without patch 117122-03
* Solaris 10 without patch 123779-02
Notes:
1. The SPARC platform is not affected by these issues.
2. These issues only affect x86 systems which have ATA disks
installed.
3. Bug 6433123 concerns two affected ioctls which impact Solaris 8,9
and 10, while Bug 6433124 concerns one additional ioctl which only
impacts Solaris 10.
To determine if the ata(7D) kernel module is in use, the following
command can be run:
% modinfo | grep -w ata
3. Symptoms
Should the described issues occur, the system may panic and generate a
stack trace similar to one of the following:
32 bit i386 system:
ata_disk_ioctl+0x16f()
dadk_ioctl+0x1d7()
cmdkioctl+0x361()
cdev_ioctl+0x2b()
spec_ioctl+0x62()
fop_ioctl+0x24()
ioctl+0x199()
sys_sysenter+0x101()
64 bit i386 system:
ata_disk_ioctl+0x14c()
dadk_ioctl+0x225()
cmdkioctl+0x1d8()
cdev_ioctl+0x1d()
spec_ioctl+0x50()
fop_ioctl+0x25()
ioctl+0xac()
sys_syscall32+0x101()
4. Relief/Workaround
There is no workaround for these issues. Please see the Resolution
section below.
5. Resolution
These issues are addressed in the following releases:
x86 Platform
* Solaris 8 with patch 109798-04 or later
* Solaris 9 with patch 117122-03 or later
* Solaris 10 with patch 123779-02 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
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