Summary
The remote host is missing an update as announced
via advisory SSA:2006-215-01.
Solution
https://secure1.securityspace.com/smysecure/catid.html?in=SSA:2006-215-01
Insight
New GnuPG packages are available for Slackware 9.0, 9.1, 10.0, 10.1, 10.2, and -current to fix security issues which could allow an attacker to crash gnupg and possibly overwrite memory which could lead to an integer overflow.