A vulnerability was discovered and corrected in libxml2:

A double free vulnerability in libxml2 (xpath.c) allows remote
attackers to cause a denial of service or possibly have unspecified
other impact via vectors related to XPath handling (CVE-2010-4494).

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 patched to correct this issue.