Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues. MySQL has been updated to 8.0.21 in Ubuntu 20.04 LTS. Ubuntu 16.04 LTS and Ubuntu 18.04 LTS have been updated to MySQL 5.7.31. In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes. Please see the following for more information:
https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-31.html https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-21.html https://www.oracle.com/security-alerts/cpujul2020.html

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update of the mysql package has been released.

The version of MySQL running on the remote host is 8.0.x prior to and including 8.0.20. It is, therefore, affected by multiple vulnerabilities, including the following, as noted in the July 2020 Critical Patch Update advisory:

  -  Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges).
  Supported versions that are affected are 8.0.20 and prior. Easily exploitable vulnerability allows high privileged   attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this   vulnerability can result in takeover of MySQL Server. (CVE-2020-14697, CVE-2020-14678)

  - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions   that are affected are 8.0.20 and prior. Easily exploitable vulnerability allows low privileged attacker with   network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can   result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. (CVE-2020-14680)

  - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Roles). Supported   versions that are affected are 8.0.20 and prior. Easily exploitable vulnerability allows high privileged   attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this   vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL   Server as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. (CVE-2020-14651)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-202105-27 (MySQL: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in MySQL. Please review       the CVE identifiers referenced below for details.
  Impact :

    An attacker could possibly execute arbitrary code with the privileges of       the process, escalate privileges, gain access to critical data or       complete access to all MySQL server accessible data, or cause a Denial of       Service condition.
  Workaround :

    There is no known workaround at this time.

ID	Name	Product	Family	Published	Updated	Severity
139181	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : MySQL vulnerabilities (USN-4441-1)	Nessus	Ubuntu Local Security Checks	7/30/2020	10/21/2023	high
139043	Photon OS 3.0: Mysql PHSA-2020-3.0-0118	Nessus	PhotonOS Local Security Checks	7/29/2020	11/1/2023	high
138560	MySQL 8.0.x < 8.0.21 Multiple Vulnerabilities (Jul 2020 CPU)	Nessus	Databases	7/16/2020	11/1/2023	high
156994	GLSA-202105-27 : MySQL: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	1/24/2022	1/16/2024	high

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