The remote host is missing an update to mozilla announced via advisory DSA 775-1. A vulnerability has been discovered in Mozilla and Mozilla Firefox that allows remote attackers to inject arbitrary Javascript from one page into the frameset of another site. Thunderbird is not affected by this and Galeon will be automatically fixed as it uses Mozilla components. The old stable distribution (woody) does not contain Mozilla Firefox packages.

For the stable distribution (sarge) this problem has been fixed in version 1.0.4-2sarge1. For the unstable distribution (sid) this problem has been fixed in version 1.0.6-1. We recommend that you upgrade your mozilla-firefox package. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20775-1