USN-4282-1: PostgreSQL vulnerability

Releases

• Ubuntu 19.10
• Ubuntu 18.04 ESM

Packages

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

• postgresql-10 - 10.12-0ubuntu0.18.04.1

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-2020-1720