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USN-4027-1: PostgreSQL vulnerability

20 June 2019

PostgreSQL could be made to crash or run programs if it received specially crafted network traffic.

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Releases

Packages

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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 19.04
Ubuntu 18.10
Ubuntu 18.04

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