The remote host is missing an update to hpsockd announced via advisory DSA 604-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20604-1

infamous41md discovered a buffer overflow condition in hpsockd, the socks server written at Hewlett-Packard. An exploit could cause the program to crash or may have worse effect. For the stable distribution (woody) this problem has been fixed in version 0.6.woody1. For the unstable distribution (sid) this problem has been fixed in version 0.14. We recommend that you upgrade your hpsockd package.