Debian DSA-1921-1: Urgent Expat Denial of Service Vulnerability Found

Peter Valchev discovered an error in expat, an XML parsing C library,
when parsing certain UTF-8 sequences, which can be exploited to crash an
application using the library.

For the old stable distribution (etch), this problem has been fixed in
version 1.95.8-3.4+etch1.

For the stable distribution (lenny), this problem has been fixed in
version 2.0.1-4+lenny1.

For the testing distribution (squeeze) and the unstable distribution
(sid), this problem will be fixed soon.


We recommend that you upgrade your expat 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 resources from the
footer to the proper configuration.


Debian GNU/Linux 4.0 alias etch

Debian (oldst...