Several vulnerabilities have been discovered in Squirrelmail, a commonly used webmail system. The Common Vulnerabilities and Exposures project identifies the following problems:
Martijn Brinkers discovered cross-site scripting vulnerabilities that allow remote attackers to inject arbitrary web script or HTML in the URL and e-mail messages.
James Bercegay of GulfTech Security discovered a vulnerability in the variable handling which could lead to attackers altering other people's preferences and possibly reading them, writing files at any location writable for www-data and cross site scripting.
For the old stable distribution (woody) these problems have been fixed in version 1.2.6-4.
For the stable distribution (sarge) these problems have been fixed in version 1.4.4-6sarge1.
For the unstable distribution (sid) these problems have been fixed in version 1.4.4-6sarge1.
We recommend that you upgrade your squirrelmail package.
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 3.0 alias woody - --------------------------------