CVE-2021-35634: Medium severity oracle mysql vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.26 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.
External References:
http://www.oracle.com/security-alerts/cpuoct2021.html#AppendixMSQL
Other sources
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.26 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).
— MITRE
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-35634?
CVE-2021-35634 is considered a high severity vulnerability due to its potential for exploitation by privileged attackers.
How do I fix CVE-2021-35634?
To fix CVE-2021-35634, upgrade MySQL Server to version 8.0.27 or later.
What versions of MySQL are affected by CVE-2021-35634?
CVE-2021-35634 affects MySQL Server versions up to and including 8.0.26.
Who can exploit CVE-2021-35634?
CVE-2021-35634 can be easily exploited by high privileged attackers with network access.
What component of MySQL is impacted by CVE-2021-35634?
CVE-2021-35634 impacts the Server: Optimizer component of the MySQL Server.