Debian Security Advisory DSA 2137-1 (libxml2)

Summary
The remote host is missing an update to libxml2 announced via advisory DSA 2137-1.
Solution
https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202137-1
Insight
Yang Dingning discovered a double free in libxml's Xpath processing, which might allow the execution of arbitrary code. For the stable distribution (lenny), this problem has been fixed in version 2.6.32.dfsg-5+lenny3. For the upcoming stable distribution (squeeze) and the unstable distribution (sid), this problem has been fixed in version 2.7.8.dfsg-2. We recommend that you upgrade your libxml2 packages.