CVE-2021-2166

NameCVE-2021-2166
DescriptionVulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 5.7.33 and prior and 8.0.23 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 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium
Debian Bugs987325

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mariadb-10.3 (PTS)buster1:10.3.27-0+deb10u1vulnerable
buster (security)1:10.3.25-0+deb10u1vulnerable
mariadb-10.5 (PTS)bullseye, sid1:10.5.9-1vulnerable
mysql-8.0 (PTS)sid8.0.23-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mariadb-10.3source(unstable)(unfixed)
mariadb-10.5source(unstable)(unfixed)
mysql-5.7source(unstable)(unfixed)
mysql-8.0source(unstable)(unfixed)987325

Notes

[buster] - mariadb-10.3 <no-dsa> (Minor issue)
Fixed in MariaDB 10.5.10, 10.4.19, 10.3.29, 10.2.38

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