USN-257-1: tar vulnerability

23 February 2006

tar vulnerability

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

  • Ubuntu 5.10
  • Ubuntu 5.04

Software Description

Details

Jim Meyering discovered that tar did not properly verify the validity of certain header fields in a GNU tar archive. By tricking an user into processing a specially crafted tar archive, this could be exploited to execute arbitrary code with the privileges of the user.

The tar version in Ubuntu 4.10 is not affected by this vulnerability.

Update instructions

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

Ubuntu 5.10
tar
Ubuntu 5.04
tar

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

References