postgresql-9.4 - security update

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

• CVE-2015-5288
  Josh Kupershmidt discovered a vulnerability in the crypt() function
  in the pgCrypto extension. Certain invalid salt arguments can cause
  the server to crash or to disclose a few bytes of server memory.
• CVE-2015-5289
  Oskari Saarenmaa discovered that json or jsonb input values
  constructed from arbitrary user input can crash the PostgreSQL
  server and cause a denial of service.

For the stable distribution (jessie), these problems have been fixed in
version 9.4.5-0+deb8u1.

For the testing distribution (stretch), these problems have been fixed
in version 9.4.5-1.

For the unstable distribution (sid), these problems have been fixed in
version 9.4.5-1.

We recommend that you upgrade your postgresql-9.4 packages.