Mandriva Linux Security Advisory 2009-060-1 – A security vulnerability has been identified and fixed in nfs-utils, which caused TCP Wrappers to ignore netgroups and allows remote attackers to bypass intended access restrictions. The updated packages have been patched to prevent this. The Corporate Server 4 packages had the wrong release number (lower than before) which prevented the update packages from being installed automatically. This problem has now been solved with new packages with the correct release number.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/75897/MDVSA-2009-060-1.txt
Source: https://packetstormsecurity.com/files/75897/Mandriva-Linux-Security-Advisory-2009-060.html