CVE-2018-2771: Medium severity Oracle MySQL vulnerability
Last updated 18 August 2025
Other sources
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Locking). Supported versions that are affected are 5.5.59 and prior, 5.6.39 and prior and 5.7.21 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.
External References:
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
— Red Hat
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Locking). Supported versions that are affected are 5.5.59 and prior, 5.6.39 and prior and 5.7.21 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. CVSS 3.0 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2018-2771?
CVE-2018-2771 is considered a difficult to exploit vulnerability that affects high privileged attackers in MySQL Server.
How do I fix CVE-2018-2771?
To fix CVE-2018-2771, upgrade MySQL Server to version 5.5.60, 5.6.40, or 5.7.22 or later.
Which MySQL server versions are affected by CVE-2018-2771?
Affected versions of MySQL Server include 5.5.59 and prior, 5.6.39 and prior, and 5.7.21 and prior.
Is CVE-2018-2771 applicable to MariaDB?
Yes, certain versions of MariaDB are affected, specifically those prior to version 10.0.35.
What precautions should I take regarding CVE-2018-2771?
It is essential to regularly update your MySQL Server to non-vulnerable versions and monitor for any related security advisories.