USN-301-1: kdm vulnerability

Publication date

15 June 2006

Overview

kdm vulnerability


Details

Ludwig Nussel discovered that kdm managed the ~/.dmrc file in an
insecure way. By performing a symlink attack, a local user could
exploit this to read arbitrary files on the system, like private files
of other users, /etc/shadow, and similarly sensitive data.

Ludwig Nussel discovered that kdm managed the ~/.dmrc file in an
insecure way. By performing a symlink attack, a local user could
exploit this to read arbitrary files on the system, like private files
of other users, /etc/shadow, and similarly sensitive data.

Update instructions

In general, a standard system upgrade is sufficient to effect the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
6.06 dapper kdm –  4:3.5.2-0ubuntu27
5.10 breezy kdm –  4:3.4.3-0ubuntu7
5.04 hoary kdm –  4:3.4.0-0ubuntu18.3

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


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