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AUSCERT External Security Bulletin Redistribution
ESB-2006.0154 -- [Solaris]
Integer Overflow Vulnerability in Perl May Lead to
Application Crash or Code Execution
2 March 2006
AusCERT Security Bulletin Summary
Publisher: Sun Microsystems
Operating System: Solaris 10
Impact: Reduced Security
CVE Names: CVE-2005-3962
Comment: Note that before this flaw could be exploited, the affected
Perl application or script would have to contain its own
format string coding error.
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Sun(sm) Alert Notification
* Sun Alert ID: 102192
* Synopsis: Integer Overflow Vulnerability in Perl May Lead to
Application Crash or Code Execution
* Category: Security
* Product: Solaris 10 Operating System
* BugIDs: 6368763
* Avoidance: Patch
* State: Resolved
* Date Released: 28-Feb-2006
* Date Closed: 28-Feb-2006
* Date Modified:
An unprivileged local user may be able to cause a Perl application to
crash or possibly execute arbitrary code with the privileges of the
Perl application due to an integer overflow in the Perl_sv_vcatpvfn()
Being able to crash a Perl application is a type of Denial of Service
(DoS). If the Perl application accepts input from remote users then
the impact can be extended to include remote unprivileged users.
This issue is referenced in the following document:
2. Contributing Factors
This issue can occur in the following releases:
* Solaris 10 without patch 119985-02
* Solaris 10 without patch 122082-01
Note: Solaris 8 and Solaris 9 are not affected by this issue.
This issue only affects Perl versions 5.8.0 and later. Solaris 10
ships with Perl 5.6.1 in "/usr/perl5/5.6.1/" and Perl 5.8.4 in
"/usr/perl5/5.8.4/". The patches for this issue only apply to Perl
There are no reliable symptoms that would indicate the described issue
has been exploited to execute arbitrary commands with the privileges
of the affected Perl application on a host. The symptoms of the Denial
of Service would be the Perl application no longer running.
There is no workaround. Please see the "Resolution" section below.
This issue is addressed in the following releases:
* Solaris 10 with patch 119985-02 or later
* Solaris 10 with patch 122082-01 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
notification may only be used for the purposes contemplated by these
Copyright 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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