CVE-2019-2974

Name	CVE-2019-2974
Description	Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 5.6.45 and prior, 5.7.27 and prior and 8.0.17 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. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	942443

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Debian Bugs
mariadb-10.1	source	stretch	10.1.44-0+deb9u1
mariadb-10.1	source	(unstable)	(unfixed)
mariadb-10.3	source	buster	1:10.3.22-0+deb10u1
mariadb-10.3	source	(unstable)	1:10.3.19-1
mysql-5.7	source	(unstable)	(unfixed)	942443

Notes

https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html#AppendixMSQL
MySQL: https://github.com/mysql/mysql-server/commit/52d9daf06478851548251ec2103cdc22178c48c4
MariaDB: https://github.com/MariaDB/server/commit/719ac0ad4af0dd1e20dbc94eff8f8c9f786b3393
Fixed in MariaDB: 10.3.19, 10.1.42