smbmnt in Samba 2.x and 3.x on Linux 2.6, when installed setuid, allows local users to gain root privileges by mounting a Samba share that contains a setuid root program, whose setuid attributes are not cleared when the share is mounted.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15131
http://www.debian.org/security/2004/dsa-463