util-linux - privilege escalation

David Watson discovered a bug in mount as provided by util-linux and
other packages such as loop-aes-utils that allows local users to
bypass filesystem access restrictions by re-mounting it read-only.

For the old stable distribution (woody) this problem has been fixed in
version 2.11n-7woody1.

For the stable distribution (sarge) this problem has been fixed in
version 2.12p-4sarge1.

For the unstable distribution (sid) this problem has been fixed in
version 2.12p-8.

We recommend that you upgrade your util-linux package.