postgresql-9.4 - security update

Several vulnerabilities have been found in PostgreSQL-9.4, a SQL
database system.

• CVE-2015-3165
  (Remote crash)

SSL clients disconnecting just before the authentication timeout
expires can cause the server to crash.

• CVE-2015-3166
  (Information exposure)

The replacement implementation of snprintf() failed to check for
errors reported by the underlying system library calls; the main
case that might be missed is out-of-memory situations. In the worst
case this might lead to information exposure.

• CVE-2015-3167
  (Possible side-channel key exposure)

In contrib/pgcrypto, some cases of decryption with an incorrect key
could report other error message texts. Fix by using a
one-size-fits-all message.

For the stable distribution (jessie), these problems have been fixed in
version 9.4.2-0+deb8u1.

For the testing distribution (stretch), these problems will be fixed
soon.

For the unstable distribution (sid), these problems have been fixed in
version 9.4.2-1.

We recommend that you upgrade your postgresql-9.4 packages.