The remote host is missing an update to openafs announced via advisory DSA 2168-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202168-1

Two vulnerabilities were discovered the distributed filesystem AFS: CVE-2011-0430 Andrew Deason discovered that a double free in the Rx server process could lead to denial of service or the execution of arbitrary code. CVE-2011-0431 It was discovered that insufficient error handling in the kernel module could lead to denial of service. For the oldstable distribution (lenny), this problem has been fixed in version 1.4.7.dfsg1-6+lenny4. Due to a technical problem with the buildd infrastructure the update is not yet available, but will be installed into the archive soon. For the stable distribution (squeeze), this problem has been fixed in version 1.4.12.1+dfsg-4. For the unstable distribution (sid), this problem has been fixed in version 1.4.14+dfsg-1. We recommend that you upgrade your openafs packages. Note that in order