USN-4027-1: PostgreSQL vulnerability

Releases

• Ubuntu 19.04
• Ubuntu 18.10
• Ubuntu 18.04 ESM

Packages

• postgresql-10 - Object-relational SQL database
• postgresql-11 - Object-relational SQL database

Details

Alexander Lakhin discovered that PostgreSQL incorrectly handled
authentication. An authenticated attacker or a rogue server could use this
issue to cause PostgreSQL to crash, resulting in a denial of service, or
possibly execute arbitrary code. The default compiler options for affected
releases should reduce the vulnerability to a denial of service.

Update instructions

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

Ubuntu 19.04

• postgresql-11 - 11.4-0ubuntu0.19.04.1

Ubuntu 18.10

• postgresql-10 - 10.9-0ubuntu0.18.10.1

Ubuntu 18.04

• postgresql-10 - 10.9-0ubuntu0.18.04.1

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-2019-10164