=========================================================================Ubuntu Security Notice USN-3589-1
March 06, 2018

postgresql-9.3, postgresql-9.5, postgresql-9.6 vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

PostgreSQL could be made to execute arbitrary code.

Software Description:
- postgresql-9.6: Object-relational SQL database
- postgresql-9.5: Object-relational SQL database
- postgresql-9.3: Object-relational SQL database

Details:

It was discovered that PostgreSQL incorrectly handled certain settings.
An attacker could possibly use this issue to execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 17.10:
  postgresql-9.6                  9.6.8-0ubuntu0.17.10

Ubuntu 16.04 LTS:
  postgresql-9.5                  9.5.12-0ubuntu0.16.04

Ubuntu 14.04 LTS:
  postgresql-9.3                  9.3.22-0ubuntu0.14.04

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart PostgreSQL to
make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-3589-1
  CVE-2018-1058, https://launchpad.net/bugs/1752271

Package Information:
  https://launchpad.net/ubuntu/+source/postgresql-9.6/9.6.8-0ubuntu0.17.10
  https://launchpad.net/ubuntu/+source/postgresql-9.5/9.5.12-0ubuntu0.16.04
  https://launchpad.net/ubuntu/+source/postgresql-9.3/9.3.22-0ubuntu0.14.04