postgresql-10, postgresql-11 vulnerability

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

* Ubuntu 19.10
* Ubuntu 18.04 LTS

Summary

PostgreSQL could allow unintended access to the database.

Software Description

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

Details

It was discovered that PostgreSQL incorrectly performed
authorization checks when handling the "ALTER ... DEPENDS ON
EXTENSION" sub-commands. A remote attacker could possibly use this
issue to drop any function, procedure, materialized view, index,
or trigger under certain conditions.

Update instructions

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

Ubuntu 19.10
postgresql-11 - 11.7-0ubuntu0.19.10.1

Ubuntu 18.04 LTS
postgresql-10 - 10.12-0ubuntu0.18.04.1

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-2020-1720

--- Mystic BBS v1.12 A44 (Linux/64)
* Origin: BZ&BZ BBS (21:4/110)