CVE-2019-2737: Canonical Ubuntu Linux

Medium severity, CVSS 4.9. EPSS: 3.9% chance of exploitation in the next 30 days.

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Pluggable Auth). Supported versions that are affected are 5.6.44 and prior, 5.7.26 and prior and 8.0.16 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. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 19.04 only
• Fedoraproject Fedora: version 29 only; version 30 only
• MariaDB MariaDB: from 5.5.0, before 5.5.65 (fixed in 5.5.65); from 10.1.0, before 10.1.41 (fixed in 10.1.41); from 10.2.0, before 10.2.26 (fixed in 10.2.26); from 10.3.0, before 10.3.17 (fixed in 10.3.17); from 10.4.0, before 10.4.7 (fixed in 10.4.7)
• Opensuse Leap: version 15.1 only
• Oracle MySQL: from 5.6.0, up to and including 5.6.44; from 5.7.0, up to and including 5.7.26; from 8.0.0, up to and including 8.0.16

Published 2019-07-23. Last modified 2026-06-17.