Debian Security Advisory DSA-2136-1 firstname.lastname@example.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.
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: email@example.com Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>