CVE-2021-2385: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Replication). Supported versions that are affected are 5.7.34 and prior and 8.0.25 and prior. Difficult to exploit 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data.
External References:
http://www.oracle.com/security-alerts/cpujul2021.html#AppendixMSQL
Other sources
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Replication). Supported versions that are affected are 5.7.34 and prior and 8.0.25 and prior. Difficult to exploit 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.1 Base Score 5.0 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/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 5.7.35 - Upgrade
Upgrade
redhat/mysqlto a version that resolves this vulnerability.Fixed in 8.0.26
Event History
Frequently Asked Questions
What is the severity of CVE-2021-2385?
CVE-2021-2385 has been classified as a difficult to exploit vulnerability allowing high privileged attackers with network access to compromise MySQL Server.
How do I fix CVE-2021-2385?
To fix CVE-2021-2385, update MySQL Server to versions 5.7.35 or 8.0.26 or later.
Which versions of MySQL are affected by CVE-2021-2385?
CVE-2021-2385 affects MySQL Server versions 5.7.34 and prior, as well as 8.0.25 and prior.
What components are involved in CVE-2021-2385?
The vulnerability exists in the MySQL Server product, particularly in the Replication component.
Who is affected by CVE-2021-2385?
High privileged attackers with network access via multiple protocols can exploit CVE-2021-2385, affecting organizations using vulnerable MySQL Server versions.