A vulnerability was discovered and corrected in bind:

Unspecified vulnerability in ISC BIND 9 9.6.x before 9.6-ESV-R4-P3,
9.7.x before 9.7.3-P3, and 9.8.x before 9.8.0-P4 allows remote
attackers to cause a denial of service (named daemon crash) via a
crafted UPDATE request (CVE-2011-2464).

Packages for 2009.0 are provided as of the Extended Maintenance
Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149&products_id=490

The updated packages have been upgraded to bind 9.7.3-P3 which is
not vulnerable to this issue.