Packages
- postgresql-12 - Object-relational SQL database
- postgresql-14 - Object-relational SQL database
- postgresql-15 - Object-relational SQL database
Details
It was discovered that PostgreSQL incorrectly handled certain extension
script substitutions. An attacker having database-level CREATE privileges
can use this issue to execute arbitrary code as the bootstrap superuser.
(CVE-2023-39417)
It was discovered that PostgreSQL incorrectly handled the MERGE command. A
remote attacker could possibly use this issue to bypass certain UPDATE and
SELECT policies. This issue only affected Ubuntu 23.04. (CVE-2023-39418)
It was discovered that PostgreSQL incorrectly handled certain extension
script substitutions. An attacker having database-level CREATE privileges
can use this issue to execute arbitrary code as the bootstrap superuser.
(CVE-2023-39417)
It was discovered that PostgreSQL incorrectly handled the MERGE command. A
remote attacker could possibly use this issue to bypass certain UPDATE and
SELECT policies. This issue only affected Ubuntu 23.04. (CVE-2023-39418)
Update instructions
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.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 23.04 lunar | postgresql-15 – 15.4-0ubuntu0.23.04.1 | ||
| postgresql-client-15 – 15.4-0ubuntu0.23.04.1 | |||
| 22.04 jammy | postgresql-14 – 14.9-0ubuntu0.22.04.1 | ||
| postgresql-client-14 – 14.9-0ubuntu0.22.04.1 | |||
| 20.04 focal | postgresql-12 – 12.16-0ubuntu0.20.04.1 | ||
| postgresql-client-12 – 12.16-0ubuntu0.20.04.1 | |||
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