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USN-257-1: tar vulnerability

23 February 2006

tar vulnerability

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Releases

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.

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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 5.10
  • tar -
Ubuntu 5.04
  • tar -

In general, a standard system update will make all the necessary changes.

References