Debian: DSA-2102-1 Critical: Barnowl Remote Code Execution Issue

It has been discovered that in barnowl, a curses-based instant-messaging
client, the return codes of calls to the ZPending and ZReceiveNotice
functions in libzephyr were not checked, allowing attackers to cause a
denial of service (crash of the application), and possibly execute
arbitrary code.

For the stable distribution (lenny), this problem has been fixed in
version 1.0.1-4+lenny2.

For the testing distribution (squeeze), this problem has been fixed in
version 1.6.2-1.

For the unstable distribution (sid), this problem has been fixed in
version 1.6.2-1.

We recommend that you upgrade your barnowl packages.

Upgrade instructions
- --------------------

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 resource...