Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2006.0110 -- [UNIX/Linux]
PAM-MySQL 0.6.2 and 0.7pre3 fix double free vulnerability
10 February 2006
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: PAM-MySQL 0.6.1 and prior
PAM-MySQL 0.7pre2 and prior
Publisher: US-CERT
Operating System: UNIX variants (UNIX, Linux)
Impact: Execute Arbitrary Code/Commands
Denial of Service
Access: Remote/Unauthenticated
CVE Names: CVE-2006-0056
Original Bulletin: http://www.kb.cert.org/vuls/id/693909
- --------------------------BEGIN INCLUDED TEXT--------------------
US-CERT Vulnerability Note VU#693909
PAM-MySQL contains a double free vulnerability
Overview
PAM-MySQL contains a double-free vulnerability that may allow a remote
attacker to execute arbitrary code or cause a denial-of-service condition.
I. Description
PAM-MySQL provides a Pluggable Authentication Module (PAM) interface to
a MySQL database. PAM-MySQL does not securely handle a pointer returned
by the pam_get_item() routine resulting in a double-free vulnerability.
The vulnerability exists if the following conditions are present:
1. Two or more PAM modules are stacked.
2. The PAM-MySQL module is not the first in the stack.
3. Any of the modules preceding the PAM-MySQL module are not marked as requisite.
II. Impact
If a remote attacker supplies a specially crafted password to a
vulnerable PAM-MySQL installation that attacker may be able to crash
the PAM-MySQL process. Please note that it may be possible to exploit
this vulnerability to execute arbitrary code.
III. Solution
Upgrade PAM-MySQL
Upgrading to PAM-MySQL version 0.6.2 or PAM-MySQL version 0.7pre3 will correct this issue.
Systems Affected
No Information Available
References
http://jvn.jp/cert/JVNVU%23693909/index.html
http://pam-mysql.sourceforge.net/News/00005.php
http://sourceforge.net/forum/forum.php?forum_id=499394
Credit
This vulnerability was reported by Moriyoshi Koizumi.
This document was written by Jeff Gennari.
Other Information
Date Public 09/28/2005
Date First Published 02/08/2006 09:05:56 PM
Date Last Updated 02/08/2006
CERT Advisory
CVE Name CVE-2006-0056
Metric 3.94
Document Revision 30
- --------------------------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
iQCVAwUBQ+wMnyh9+71yA2DNAQJamQP+Oe9G1w5YdUHbglJ3x3XHXO25wh36Vf1o
EN07FJm9mTqhEHhQeQyDZY7h1xjg4w3fUgdhVxlXbYw5BY1pwhwUS0Aqks6hPDyI
Jkw+OjzSj8vdhUmfnt91/FQmgtAVusUoFBF6xnnSaHc0FhVH70ibdrHWJBpsEByW
If9SSTNYYSw=
=T6eH
-----END PGP SIGNATURE-----