TUCoPS :: SunOS/Solaris

TUCoPS :: SunOS/Solaris :: n-131.txt
Sun Solaris Runtime Linker ld so 1 Vulnerability (CIAC N-131)

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

Sun Solaris Runtime Linker ld.so.1(1) Vulnerability
[Sun Alert ID: 55680]

July 30, 2003 16:00 GMT Number N-131
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PROBLEM: A buffer overflow vulnerability has been identified in the
runtime linker ld.so.1(1). The runtime linker ld.so.1(1)
processes dynamic executables and shared objects at runtime,
binding them to create a runnable process.
PLATFORM: Solaris 2.6, 7, 8, and 9
DAMAGE: Local attackers could gain root access.
SOLUTION: Apply appropriate patches.
______________________________________________________________________________
VULNERABILITY The risk is MEDIUM. A local attacker could exploit this
ASSESSMENT: vulnerability if at least one setuid root dynamically linked
program exists on the system. This is the case on virtually all
default implementations of Solaris 8 and 9.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/n-131.shtml
ORIGINAL BULLETIN:
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=
fsalert%2F55680&zone_32=category%3Asecurity
______________________________________________________________________________
[***** Start Sun Alert ID: 55680 *****]

Sun(sm) Alert Notification

Sun Alert ID: 55680
Synopsis: Security Vulnerability in the Solaris Runtime Linker ld.so.1(1)
Category: Security
Product: Solaris
BugIDs: 4872634
Avoidance: Patch
State: Resolved
Date Released: 29-Jul-2003
Date Closed: 29-Jul-2003
Date Modified:

1. Impact

An unprivileged local user may be able to gain unauthorized root
privileges due to a buffer overflow in the runtime linker ld.so.1(1).

Sun acknowledges with thanks, Jouko Pynnönen (jouko@iki.fi) for bringing
this issue to our attention and iDEFENSE Inc. (www.idefense.com) for
coordinating the release of this issue.

This issue is described in iDEFENSE Advisory located at:
http://www.idefense.com/advisory/07.29.03.txt.

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

Solaris 2.6 with patch 107733-10 and without patch 107733-11
Solaris 7 with patches 106950-14 through 106950-22 and without
patch 106950-23
Solaris 8 with patches 109147-07 through 109147-24 and without
patch 109147-25
Solaris 9 without patch 112963-09

x86 Platform

Solaris 2.6 with patch 107734-10 and without patch 107734-11
Solaris 7 with patches 106951-14 through 106951-22 and without
patch 106951-23
Solaris 8 with patches 109148-07 through 109148-24 and without
patch 109148-25
Solaris 9 without patch 113986-05

3. Symptoms

There are no reliable symptoms that would show the described issue
has been exploited.

Solution Summary
Top
4. Relief/Workaround

There is no workaround. Please see the "Resolution" section below.

5. Resolution

This issue is addressed in the following releases:

SPARC Platform

Solaris 2.6 with patch 107733-11 or later
Solaris 7 with patch 106950-23 or later
Solaris 8 with patch 109147-25 or later
Solaris 9 with patch 112963-09 or later

x86 Platform

Solaris 2.6 with patch 107734-11 or later
Solaris 7 with patch 106951-23 or later
Solaris 8 with patch 109148-25 or later
Solaris 9 with patch 113986-05 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: 55680 *****]
_______________________________________________________________________________

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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