CVE-2021-2387
First published: Tue Jul 20 2021(Updated: )
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.25 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).
Credit: secalert_us@oracle.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/mysql | <8.0.26 | 8.0.26 |
| MySQL Server | >=8.0.0<=8.0.25 | |
| NetApp OnCommand Insight |
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Reference Links
- https://security.netapp.com/advisory/ntap-20210723-0001/
- https://www.oracle.com/security-alerts/cpujul2021.html
- http://www.oracle.com/security-alerts/cpujul2021.html#AppendixMSQL
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1992821
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1992822
- https://access.redhat.com/errata/RHSA-2021:3590
- https://access.redhat.com/security/cve/cve-2021-2387
- https://access.redhat.com/errata/RHSA-2021:3811
- https://bugzilla.redhat.com/show_bug.cgi?id=1992308
Frequently Asked Questions
What is the severity of CVE-2021-2387?
CVE-2021-2387 is classified as an easily exploitable vulnerability that allows a high privileged attacker to compromise MySQL Server.
How do I fix CVE-2021-2387?
To remediate CVE-2021-2387, upgrade MySQL Server to version 8.0.26 or later.
What versions of MySQL Server are affected by CVE-2021-2387?
CVE-2021-2387 affects MySQL Server versions 8.0.25 and prior.
Who can exploit CVE-2021-2387?
CVE-2021-2387 can be exploited by attackers with high privileges and network access via multiple protocols.
What components of MySQL Server does CVE-2021-2387 impact?
CVE-2021-2387 impacts the MySQL Server component related to the Optimizer.
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