The remote host is missing an update to logwatch announced via advisory DSA 2182-1.

For the oldstable distribution (lenny), this problem has been fixed in version 7.3.6.cvs20080702-2lenny1. For the stable distribution (squeeze), this problem has been fixed in version 7.3.6.cvs20090906-1squeeze1. For the testing distribution (wheezy) and the unstable distribution (sid), this problem has been fixed in version 7.3.6.cvs20090906-2. We recommend that you upgrade your logwatch packages. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202182-1

Dominik George discovered that logwatch does not guard against shell meta-characters in crafted log file names (such as those produced by Samba). As a result, an attacker might be able to execute shell commands on the system running logwatch.