USN-4472-1: PostgreSQL vulnerabilities

Releases

• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• postgresql-10 - Object-relational SQL database
• postgresql-12 - Object-relational SQL database
• postgresql-9.5 - Object-relational SQL database

Details

Noah Misch discovered that PostgreSQL incorrectly handled the search_path
setting when used with logical replication. A remote attacker could
possibly use this issue to execute arbitrary SQL code. This issue only
affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-14349)

Andres Freund discovered that PostgreSQL incorrectly handled search path
elements in CREATE EXTENSION. A remote attacker could possibly use this
issue to execute arbitrary SQL code. (CVE-2020-14350)

Update instructions

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

Ubuntu 20.04

• postgresql-12 - 12.4-0ubuntu0.20.04.1

Ubuntu 18.04

• postgresql-10 - 10.14-0ubuntu0.18.04.1

Ubuntu 16.04

• postgresql-9.5 - 9.5.23-0ubuntu0.16.04.1

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-2020-14349
• CVE-2020-14350