virtualbox - security update

Francisco Falcon discovered that missing input sanitizing in the 3D
acceleration code in VirtualBox could lead to the execution of arbitrary
code on the host system.

For the oldstable distribution (squeeze), these problems have been fixed in
version 3.2.10-dfsg-1+squeeze3.

For the stable distribution (wheezy), these problems have been fixed in
version 4.1.18-dfsg-2+deb7u3.

For the testing distribution (jessie), these problems have been fixed in
version 4.3.10-dfsg-1.

For the unstable distribution (sid), these problems have been fixed in
version 4.3.10-dfsg-1.

We recommend that you upgrade your virtualbox packages.