Is CVE-2018-3155 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 4%.

What products does CVE-2018-3155 affect?

Tracked products affected include MySQL. Check the version you run to see whether it is affected.

How do I fix CVE-2018-3155?

Apply the vendor fix promptly. An official patch or advisory is available. Upgrade affected products to a fixed version.

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CVE-2018-3155

Q: What is CVE-2018-3155?

CVE-2018-3155 is a high-severity software vulnerability with a CVSS score of 7.7. Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Parser). Supported versions that are affected are 5.7.23 and prior and 8.0.12 and prior. Easily exploitable vulnerability allows low privileged attacker with

HIGH severity · CVSS 7.7

7.7CVSS HIGH

Summary

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Parser). Supported versions that are affected are 5.7.23 and prior and 8.0.12 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. While the vulnerability is in MySQL Server, attacks may significantly impact additional products. 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 7.7 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredLow

User interactionNone

Confidentiality impactNone

Integrity impactNone

Availability impactHigh

Exploit probability (EPSS)4%

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected products we track (1)

MySQL

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html ↗

CVE-2018-3155

Summary

Impact & exploitability

Affected products we track (1)

Recommendation

Additional information