CVE-2021-35546: Medium severity Oracle MySQL vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Replication). 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: Replication). 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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/mysqlto a version that resolves this vulnerability.Fixed in 8.0.27
Event History
Frequently Asked Questions
What is the severity of CVE-2021-35546?
CVE-2021-35546 is rated as a high-severity vulnerability due to its potential for exploitation by high-privileged attackers.
How do I fix CVE-2021-35546?
To fix CVE-2021-35546, upgrade to MySQL Server version 8.0.27 or later.
What versions are vulnerable to CVE-2021-35546?
MySQL Server versions 8.0.26 and prior are vulnerable to CVE-2021-35546.
Is CVE-2021-35546 easily exploitable?
Yes, CVE-2021-35546 is considered easily exploitable with network access via multiple protocols.
What components of MySQL are affected by CVE-2021-35546?
CVE-2021-35546 affects the Replication component of the MySQL Server product.