USN-357-1: Mono vulnerability

5 October 2006

mono vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 6.06 LTS
  • Ubuntu 5.10

Software Description


Sebastian Krahmer of the SuSE security team discovered that the System.CodeDom.Compiler classes used temporary files in an insecure way. This could allow a symbolic link attack to create or overwrite arbitrary files with the privileges of the user invoking the program. Under some circumstances, a local attacker could also exploit this to inject arbitrary code into running Mono processes.

Update instructions

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

Ubuntu 6.06 LTS
mono-classlib-1.0 -
mono-classlib-2.0 -
Ubuntu 5.10
mono-classlib-1.0 -
mono-classlib-2.0 -

To update your system, please follow these instructions:

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