The problem can be corrected by upgrading the affected package to
version 1.14-2ubuntu0.1 (for Ubuntu 5.04), or 1.15.1-2ubuntu0.1 (for
Ubuntu 5.10). In general, a standard system upgrade is sufficient to
effect the necessary changes.
Details follow:
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.
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