Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2010.1170
New tor packages fix potential code execution
22 December 2010
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: tor
Publisher: Debian
Operating System: Debian GNU/Linux 5
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2010-1676
Original Bulletin:
http://www.debian.org/security/2010/dsa-2136
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running tor check for an updated version of the software for their
operating system.
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
- - ------------------------------------------------------------------------
Debian Security Advisory DSA-2136-1 security@debian.org
http://www.debian.org/security/ Raphael Geissert
December 21, 2010 http://www.debian.org/security/faq
- - ------------------------------------------------------------------------
Package : tor
Vulnerability : buffer overflow
Problem type : remote
Debian-specific: no
CVE Id : CVE-2010-1676
Willem Pinckaers discovered that Tor, a tool to enable online anonymity,
does not correctly handle all data read from the network. By supplying
specially crafted packets a remote attacker can cause Tor to overflow its
heap, crashing the process. Arbitrary code execution has not been
confirmed but there is a potential risk.
In the stable distribution (lenny), this update also includes an update of
the IP address for the Tor directory authority gabelmoo and addresses
a weakness in the package's postinst maintainer script.
For the stable distribution (lenny) this problem has been fixed in
version 0.2.1.26-1~lenny+4.
For the testing distribution (squeeze) and the unstable distribution (sid),
this problem has been fixed in version 0.2.1.26-6.
We recommend that you upgrade your tor packages.
Upgrade instructions
- - --------------------
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database
apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
- - ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)
iEYEARECAAYFAk0RRVsACgkQYy49rUbZzlp2mACeP+489ptl1vz0BQoJW1F2w9x4
K4oAnAjVvOvl898mVCeSJRhkKtEXT5nG
=eMo2
- -----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
iD8DBQFNEWYB/iFOrG6YcBERAh4uAKDdGVeLAtI1R237GfkYfeYRjEe4UgCguIog
r4P3YcP8+sicIk/0jBbcLnQ=
=kFmX
-----END PGP SIGNATURE-----