nginx - security update

It was discovered that a NULL pointer dereference in the Nginx code
responsible for saving client request bodies to a temporary file might
result in denial of service: Malformed requests could crash worker
processes.

For the stable distribution (jessie), this problem has been fixed in
version 1.6.2-5+deb8u2.

For the unstable distribution (sid), this problem has been fixed in
version 1.10.1-1.

We recommend that you upgrade your nginx packages.