CVE-2021-2426
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-2021-2426
- https://access.redhat.com/errata/RHSA-2021:3811
- https://bugzilla.redhat.com/show_bug.cgi?id=1992320
Frequently Asked Questions
What is the severity of CVE-2021-2426?
CVE-2021-2426 is considered a critical vulnerability that allows high privileged attackers to compromise MySQL Server.
How do I fix CVE-2021-2426?
To fix CVE-2021-2426, upgrade MySQL Server to version 8.0.26 or later.
What versions of MySQL are affected by CVE-2021-2426?
CVE-2021-2426 affects MySQL Server versions 8.0.25 and prior.
What component of MySQL is impacted by CVE-2021-2426?
CVE-2021-2426 impacts the MySQL Server component, specifically the Optimizer.
Can CVE-2021-2426 be exploited remotely?
Yes, CVE-2021-2426 can be easily exploited by attackers with network access using multiple protocols.
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