VDB
CVE-2021-2021
CVE-2021-2021
PUBLISHED
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.22 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).
EPSS 10.09% · 95.2th percentile
Risk Scores
EPSS Score
10.09%
95.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | percona-xtradb-cluster-5.6 | *, *, * |
| Ubuntu:20.04:LTS | mysql-8.0 | 8.0.21-0ubuntu0.20.04.3, 8.0.22-0ubuntu0.20.04.2, 8.0.21-0ubuntu0.20.04.4 |
| Ubuntu:16.04:LTS | percona-server-5.6 | 5.6.22-rel71.0-0ubuntu2, 0, 5.6.22-rel71.0-0ubuntu4.1 |
| Ubuntu:14.04:LTS | mysql-5.5 | 0, 5.5.34-0ubuntu2, 5.5.35+dfsg-1ubuntu1 |
Timeline
- Jan 19, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Jul 16, 2021 PoC Published
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-2021 third-party-advisory
- https://www.oracle.com/security-alerts/cpujan2021.html third-party-advisory
- https://ubuntu.com/security/notices/USN-4716-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-2021 third-party-advisory