TUCoPS :: SunOS/Solaris

TUCoPS :: SunOS/Solaris :: n-105.txt
Sun utmp-update Command Buffer Overflow Vulnerability (CIAC N-105)

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The U.S. Department of Energy
Computer Incident Advisory Capability
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INFORMATION BULLETIN

Sun "/usr/lib/utmp_update" Command Buffer Overflow Vulnerability
[Sun Alert ID: 55260]

June 6, 2003 16:00 GMT Number N-105
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PROBLEM: A buffer overflow vulnerability exists involving the Solaris
"/usr/lib/utmp_update" command.
PLATFORM: Solaris versions 2.6, 7, 8, and 9
DAMAGE: A local unprivileged user may be able to execute arbitrary code
with root privileges.
SOLUTION: Apply appropriate patches per Sun's Alert.
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VULNERABILITY The risk is MEDIUM. A local attacker could gain root privileges.
ASSESSMENT:
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/n-105.shtml
ORIGINAL BULLETIN: http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert%
2F55260&zone_32=category%3Asecurity
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[***** Start Sun Alert ID: 55260 *****]

Sun(sm) Alert Notification

Sun Alert ID: 55260
Synopsis: A Security Vulnerability With The "/usr/lib/utmp_update" Command
May Allow Local
Unauthorized Privileges
Product: Solaris
BugIDs: 4659277
Avoidance: Patch
State: Resolved
Date Released: 05-Jun-2003
Date Closed: 05-Jun-2003
Date Modified:

1. Impact

A local unprivileged user may be able to gain unauthorized root privileges
due to a buffer overflow involving the Solaris "/usr/lib/utmp_update"
command.

2. Contributing Factors

SPARC Platform

Solaris 2.6 without patch 113754-02
Solaris 7 without patch 113752-02
Solaris 8 without patch 113650-02
Solaris 9 without patch 113718-02

x86 Platform

Solaris 2.6 without patch 113755-02
Solaris 7 without patch 113753-02
Solaris 8 without patch 113651-02
Solaris 9 without patch 113996-02

3. Symptoms

There are no predictable symptoms that would show the described issue
has been exploited to gain unauthorized root access to a system.

Solution Summary
Top

4. Relief/Workaround

5. Resolution

SPARC Platform

Solaris 2.6 with patch 113754-02 or later
Solaris 7 with patch 113752-02 or later
Solaris 8 with patch 113650-02 or later
Solaris 9 with patch 113718-02 or later

x86 Platform

Solaris 2.6 with patch 113755-02 or later
Solaris 7 with patch 113753-02 or later
Solaris 8 with patch 113651-02 or later
Solaris 9 with patch 113996-02 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.

[***** End Sun Alert ID: 55260 *****]
_______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Sun Microsystems for the
information contained in this bulletin.
_______________________________________________________________________________

CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.

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