The remote host is missing an update to kernel-source-2.4.17 kernel-patch-2.4.17-apus kernel-patch-2.4.17-s390 kernel-image-2.4.17-s390 announced via advisory DSA 482-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20482-1

Several serious problems have been discovered in the Linux kernel. This update takes care of Linux 2.4.17 for the PowerPC/apus and S/390 architectures. For a more detailed description of the problems addressed, please visit the referenced security advisory. The following security matrix explains which kernel versions for which architectures are already fixed. Architecture stable (woody) unstable (sid) source 2.4.17-1woody3 2.4.25-3 powerpc/apus 2.4.17-5 2.4.25-2 s390 2.4.17-2.woody.4 2.4.25-2 (and probably 2.4.21-3) We recommend that you upgrade your kernel packages immediately.