[USN-3744-1] PostgreSQL vulnerabilities

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-3744-1
August 16, 2018

postgresql-10, postgresql-9.3, postgresql-9.5 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in PostgreSQL.

Software Description:
- postgresql-10: object-relational SQL database
- postgresql-9.5: Object-relational SQL database
- postgresql-9.3: Object-relational SQL database

Details:

Andrew Krasichkov discovered that the PostgreSQL client library incorrectly
reset its internal state between connections. A remote attacker could
possibly use this issue to bypass certain client-side connection security
features. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
(CVE-2018-10915)

It was discovered that PostgreSQL incorrectly checked authorization on
certain statements. A remote attacker could possibly use this issue to
read arbitrary server memory or alter certain data. (CVE-2018-10925)

Update instructions:

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

Ubuntu 18.04 LTS:
  postgresql-10                   10.5-0ubuntu0.18.04

Ubuntu 16.04 LTS:
  postgresql-9.5                  9.5.14-0ubuntu0.16.04

Ubuntu 14.04 LTS:
  postgresql-9.3                  9.3.24-0ubuntu0.14.04

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://usn.ubuntu.com/usn/usn-3744-1
  CVE-2018-10915, CVE-2018-10925

Package Information:
  https://launchpad.net/ubuntu/+source/postgresql-10/10.5-0ubuntu0.18.04
  https://launchpad.net/ubuntu/+source/postgresql-9.5/9.5.14-0ubuntu0.16.04
  https://launchpad.net/ubuntu/+source/postgresql-9.3/9.3.24-0ubuntu0.14.04

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