Ubuntu Security Notice USN-2894-1

11th February, 2016

postgresql-9.1, postgresql-9.3, postgresql-9.4 vulnerabilities

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

• Ubuntu 15.10
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary

PostgreSQL could be made to crash or run programs if it handled specially
crafted data.

Software description

• postgresql-9.1
  – Object-relational SQL database

• postgresql-9.3
  – Object-relational SQL database

• postgresql-9.4
  – Object-relational SQL database

Details

It was discovered that PostgreSQL incorrectly handled certain regular
expressions. A remote attacker could possibly use this issue to cause
PostgreSQL to crash, resulting in a denial of service. (CVE-2016-0773)

It was discovered that PostgreSQL incorrectly handled certain configuration
settings (GUCS) for users of PL/Java. A remote attacker could possibly use
this issue to escalate privileges. (CVE-2016-0766)

Update instructions

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

Ubuntu 15.10:

postgresql-9.4

9.4.6-0ubuntu0.15.10

Ubuntu 14.04 LTS:

postgresql-9.3

9.3.11-0ubuntu0.14.04

Ubuntu 12.04 LTS:

postgresql-9.1

9.1.20-0ubuntu0.12.04

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

CVE-2016-0766,

CVE-2016-0773