The remote host is missing an update to pcsc-lite announced via advisory DSA 2059-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202059-1

It was discovered that PCSCD, a daemon to access smart cards, was vulnerable to a buffer overflow allowing a local attacker to elevate his privileges to root. For the stable distribution (lenny), this problem has been fixed in version 1.4.102-1+lenny1. For the unstable distribution (sid), this problem has been fixed in version 1.5.4-1. We recommend that you upgrade your pcsc-lite package.