Please Install the Updated Packages.
Alin Rad Pop of Secunia Research discovered a stack buffer overflow in how Samba authenticates remote users. A remote unauthenticated user could trigger this flaw to cause the Samba server to crash, or possibly execute arbitrary code with the permissions of the Samba server. The updated packages have been patched to correct these issues.
samba on Mandriva Linux 2007.0, Mandriva Linux 2007.0/X86_64, Mandriva Linux 2007.1, Mandriva Linux 2007.1/X86_64, Mandriva Linux 2008.0, Mandriva Linux 2008.0/X86_64