Debian: DSA-2074-1 Critical: Ncompress Integer Underflow Code Execution

Aki Helin discovered an integer underflow in ncompress, the original
Lempel-Ziv compress/uncompress programs.
This could lead to the execution of arbitrary code when trying to decompress
a crafted LZW compressed gzip archive.

For the stable distribution (lenny), this problem has been fixed in
version 4.2.4.2-1+lenny1.

For the testing (squeeze) and unstable (sid) distribution, this
problem has been fixed in version 4.2.4.3-1.


We recommend that you upgrade your ncompress package.

Upgrade instructions
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wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 5.0 alias lenny

Debian (stable)
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Stable updates are ...