Debian 4.0 DSA-1768-1 Critical: OpenAFS Remote Code Execution Issues

Two vulnerabilities were discovered in the client part of OpenAFS, a
distributed file system.

An attacker with control of a file server or the ability to forge RX
packets may be able to execute arbitrary code in kernel mode on an
OpenAFS client, due to a vulnerability in XDR array decoding.
(CVE-2009-1251)

An attacker with control of a file server or the ability to forge RX
packets may crash OpenAFS clients because of wrongly handled error
return codes in the kernel module. (CVE-2009-1250).

Note that in order to apply this security update, you must rebuild the
OpenAFS kernel module. Be sure to also upgrade openafs-modules-source,
build a new kernel module for your system following the instructions in
/usr/share/doc/openafs-client/README.modules.gz, and then either stop
and restart openafs-client or reboot the system to reload the kernel
module.

For the old stable distribution (etch), these problems have been fixed
in version 1.4.2-6etch2.

For the stable distribution (lenny), these problems have bee...