[SECURITY] [DSA-2136-1] New tor packages fix potential code execution

2010-12-28T00:00:00
ID SECURITYVULNS:DOC:25407
Type securityvulns
Reporter Securityvulns
Modified 2010-12-28T00:00:00

Description

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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)

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