copyright | disclaimer | privacy | contact  
Australia's Leading Computer Emergency Response Team
 
Search this site

 
On this site

 > HOME
 > About AusCERT
 > Membership
 > Contact Us
 > PKI Services
 > Training
 > Publications
 > Sec. Bulletins
 > Conferences
 > News & Media
 > Services
 > Web Log
 > Site Map
 > Site Help
 > Member login





 

ESB-2012.0030 - [Debian] squid3: Denial of service - Remote/unauthenticated

Date: 09 January 2012
References: ESB-2011.1202  

Click here for printable version
Click here for PGP verifiable version
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.0030
                          squid3 security update
                              9 January 2012

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           squid3
Publisher:         Debian
Operating System:  Debian GNU/Linux 6
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2011-4096  

Reference:         ESB-2011.1202

Original Bulletin: 
   http://www.debian.org/security/2011/dsa-2381

- --------------------------BEGIN INCLUDED TEXT--------------------

- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- - -------------------------------------------------------------------------
Debian Security Advisory DSA-2381-1                   security@debian.org
http://www.debian.org/security/                            Florian Weimer
January 06, 2012                       http://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : squid3
Vulnerability  : invalid memory deallocation
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2011-4096 

It was discovered that the IPv6 support code in Squid does not
properly handle certain DNS responses, resulting in deallocation of an
invalid pointer and a daemon crash.

The squid package and the version of squid3 shipped in lenny lack IPv6
support and are not affected by this issue.

For the stable distribution (squeeze), this problem has been fixed in
version 3.1.6-1.2+squeeze2.

For the testing distribution (wheezy) and the unstable distribution
(sid), this problem has been fixed in version 3.1.18-1.

We recommend that you upgrade your squid3 packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)

iQEcBAEBAgAGBQJPBwcOAAoJEL97/wQC1SS+m9IH/jRWc9kKuku8KXGpihVK5TCB
boq81hmIlO74Oa9ZSlF3lEAVU4ZqlFtkCnrWxW3ieRP5zK22P/OvMSdM+RxsWu/M
gFi4gueXBKD2a1wks26c5kVcOaeg2cgz4uBQowdSAkwg+vXR9x2ZGr0Ed4CeMziO
OqcYiMkfX8/niCV1xCQuF+9QlLD24EFOQpp49elH34aBZmjnhZGNMf1ok2aISydV
8/LO4PRYhVjSM1cCqtiVc/6kyCgpCVezluhAsfFhn4+GcslI5/deaf3xlgybH0Mz
4WFT6y0U/iHn8SvbzXQAL4c8Q0UiIMSRKBsxiGv+jIDLkaOBL0cd1Sp63/AWptM=
=7lar
- -----END PGP SIGNATURE-----

- --------------------------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

===========================================================================
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
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=TC2O
-----END PGP SIGNATURE-----