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Ubuntu Security Notice USN-5765-1

Ubuntu Security Notice USN-5765-1
Posted Dec 8, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5765-1 - Jacob Champion discovered that PostgreSQL incorrectly handled SSL certificate verification and encryption. A remote attacker could possibly use this issue to inject arbitrary SQL queries when a connection is first established.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-23222
SHA-256 | 9a1464a0f2603b04b2110a5d8b3cbcd031c9fadc5f8aa2a6f77237b43689cd1a

Ubuntu Security Notice USN-5765-1

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-5765-1
December 07, 2022

postgresql-9.5 vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 ESM

Summary:

PostgreSQL could allow unintended access to network services.

Software Description:
- postgresql-9.5: Object-relational SQL database

Details:

Jacob Champion discovered that PostgreSQL incorrectly handled SSL
certificate verification and encryption. A remote attacker could possibly
use this issue to inject arbitrary SQL queries when a connection is first
established.

Update instructions:

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

Ubuntu 16.04 ESM:
postgresql-9.5 9.5.25-0ubuntu0.16.04.1+esm3

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

References:
https://ubuntu.com/security/notices/USN-5765-1
CVE-2021-23222
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