USN-6104-1: PostgreSQL vulnerabilities

Releases

• Ubuntu 23.04
• Ubuntu 22.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• postgresql-10 - Object-relational SQL database
• postgresql-12 - Object-relational SQL database
• postgresql-14 - Object-relational SQL database
• postgresql-15 - Object-relational SQL database

Details

Alexander Lakhin discovered that PostgreSQL incorrectly handled certain
CREATE privileges. An authenticated user could possibly use this issue to
execute arbitrary code as the bootstrap supervisor. (CVE-2023-2454)

Wolfgang Walther discovered that PostgreSQL incorrectly handled certain row
security policies. An authenticated user could possibly use this issue to
complete otherwise forbidden reads and modifications. (CVE-2023-2455)

Update instructions

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

Ubuntu 23.04

• postgresql-15 - 15.3-0ubuntu0.23.04.1
• postgresql-client-15 - 15.3-0ubuntu0.23.04.1

Ubuntu 22.10

• postgresql-14 - 14.8-0ubuntu0.22.10.1
• postgresql-client-14 - 14.8-0ubuntu0.22.10.1

Ubuntu 22.04

• postgresql-14 - 14.8-0ubuntu0.22.04.1
• postgresql-client-14 - 14.8-0ubuntu0.22.04.1

Ubuntu 20.04

• postgresql-12 - 12.15-0ubuntu0.20.04.1
• postgresql-client-12 - 12.15-0ubuntu0.20.04.1

Ubuntu 18.04

• postgresql-10 - 10.23-0ubuntu0.18.04.2
• postgresql-client-10 - 10.23-0ubuntu0.18.04.2

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-2023-2454
• CVE-2023-2455

Related notices

• USN-6230-1