The remote host is missing an update to unzip announced via advisory DSA 1012-1. A buffer overflow in the command line argument parsing has been discovered in unzip, the de-archiver for ZIP files that could lead to the execution of arbitrary code. For the old stable distribution (woody) this problem has been fixed in version 5.50-1woody6.
For the stable distribution (sarge) this problem has been fixed in version 5.52-1sarge4. For the unstable distribution (sid) this problem has been fixed in version 5.52-7. We recommend that you upgrade your unzip package. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201012-1