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Ubuntu Security Notice USN-3564-1
February 09, 2018

postgresql-9.3, postgresql-9.5, postgresql-9.6 vulnerability
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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 expose sensitive information.

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 temp
files. An attacker could possibly use this to access sensitive
information.

Update instructions:

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

Ubuntu 17.10:
  postgresql-9.6                  9.6.7-0ubuntu0.17.10

Ubuntu 16.04 LTS:
  postgresql-9.5                  9.5.11-0ubuntu0.16.04

Ubuntu 14.04 LTS:
  postgresql-9.3                  9.3.21-0ubuntu0.14.04

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://www.ubuntu.com/usn/usn-3564-1
  CVE-2018-1053

Package Information:
  https://launchpad.net/ubuntu/+source/postgresql-9.6/9.6.7-0ubuntu0.17.10
  https://launchpad.net/ubuntu/+source/postgresql-9.5/9.5.11-0ubuntu0.16.04
  https://launchpad.net/ubuntu/+source/postgresql-9.3/9.3.21-0ubuntu0.14.04