CVE-2020-2570: Canonical Ubuntu Linux

Medium severity, CVSS 5.9. EPSS: 2.9% chance of exploitation in the next 30 days.

Vulnerability in the MySQL Client product of Oracle MySQL (component: C API). Supported versions that are affected are 5.7.28 and prior and 8.0.18 and prior. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Client. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Client. CVSS 3.0 Base Score 5.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 19.10 only
• Oracle MySQL: from 5.7.0, up to and including 5.7.28; from 8.0.0, up to and including 8.0.18

Published 2020-01-15. Last modified 2026-06-17.