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Ubuntu Security Notice USN-6230-1

Ubuntu Security Notice 6230-1 - 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.

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Ubuntu Security Notice USN-6230-1
July 13, 2023

postgresql-9.5 vulnerability

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

  • Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

PostgreSQL could be made to run code with elevated privileges.

Software Description:

  • postgresql-9.5: 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.

Update instructions:

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

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
postgresql-9.5 9.5.25-0ubuntu0.16.04.1+esm4
postgresql-client-9.5 9.5.25-0ubuntu0.16.04.1+esm4

After a standard system update you need to restart PostgreSQL to
make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-6230-1
https://ubuntu.com/security/notices/USN-6104-1
CVE-2023-2454

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