The remote host is missing an update to perl announced via advisory DSA 1678-2.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201678-2

The perl update in DSA-1678-1 contains a regression which is triggered by some Perl scripts which have changed into the directory tree removed by File::Path::rmtree. In particular, this happens if File::Temp::tempdir is used. This new update corrects this regression. For the stable distribution (etch), this problem has been fixed in version 5.8.8-7etch6. For the unstable distribution (sid), this problem will be fixed soon. We recommend that you upgrade your perl packages.