The Debian Security Team published a new security update for Debian GNU/Linux. Here the announcement:

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Debian Security Advisory DSA-168201 security@debian.org
http://www.debian.org/security/ Thijs Kinkhorst
December 07, 2008 http://www.debian.org/security/faq
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Package : squirrelmail
Vulnerability : insufficient input sanitising
Problem type : remote
Debian-specific: no
CVE Id(s) : CVE-2008-2379

Ivan Markovic discovered that SquirrelMail, a webmail application, did not
sufficiently sanitise incoming HTML email, allowing an attacker to perform
cross site scripting through sending a malicious HTML email.

For the stable distribution (etch), this problem has been fixed in
version 1.4.9a-3.

For the unstable distribution (sid), this problem has been fixed in
version 1.4.15-4.

We recommend that you upgrade your squirrelmail 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 4.0 alias etch
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Source archives:

http://security.debian.org/pool/updates/main/s/squirrelmail/squirrelmail_1.4.9a-3.diff.gz
Size/MD5 checksum: 23420 b1755b11f721f2bdc7c5a100cf83f1d6
http://security.debian.org/pool/updates/main/s/squirrelmail/squirrelmail_1.4.9a.orig.tar.gz
Size/MD5 checksum: 598950 5b19f8cc5badef91d1f2410df41564bc
http://security.debian.org/pool/updates/main/s/squirrelmail/squirrelmail_1.4.9a-3.dsc
Size/MD5 checksum: 1021 9954f8522b7059cb115f5a77405c298f

Architecture independent packages:

http://security.debian.org/pool/updates/main/s/squirrelmail/squirrelmail_1.4.9a-3_all.deb
Size/MD5 checksum: 591892 35c2060553f375b9bd8759d06b401153


These files will probably be moved into the stable distribution on
its next update.

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For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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