Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
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
---------------------------------
Product: Perl
Publisher: Sun Microsystems
Operating System: Solaris 10
Impact: Reduced Security
Access: Remote/Unauthenticated
CVE Names: CVE-2005-3962
Ref: ESB-2005.1005
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102192-1
http://www.kb.cert.org/vuls/id/948385
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.
- --------------------------BEGIN INCLUDED TEXT--------------------
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:
1. Impact
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()
function.
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:
CVE-2005-3962 at:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3962
2. Contributing Factors
This issue can occur in the following releases:
SPARC Platform
* Solaris 10 without patch 119985-02
x86 Platform
* 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
5.8.4.
3. Symptoms
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.
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 10 with patch 119985-02 or later
x86 Platform
* 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
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
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
If you believe that your computer system has been compromised or attacked in
any way, we encourage you to let us know by completing the secure National IT
Incident Reporting Form at:
http://www.auscert.org.au/render.html?it=3192
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
iQCVAwUBRAZQVyh9+71yA2DNAQJLpAQAmeUTJlIc8OjTsqHZKiL3Vlh8ycqUvGq8
5fBZCSWKFgJ0KpYGK448caPr9vpg5pp9uUjU6sOvJtvBZCCbEphl6RHvxhnYBLr9
odYeOT3+p+CBBsT1cGUD/LiSbxwy15Be+AYTtYM8ftTCrxpyrxsdI3Wh/fh8xcBY
EQ+9GrYvDd4=
=mi96
-----END PGP SIGNATURE-----