CVE-2021-2389: MySQL memcached Plugin Integer Underflow Remote Code Execution Vulnerability
First published: Tue Jul 20 2021(Updated: )
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 5.7.34 and prior and 8.0.25 and prior. Difficult to exploit vulnerability allows unauthenticated 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 5.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).
Credit: secalert_us@oracle.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/mysql | <5.7.35 | 5.7.35 |
| redhat/mysql | <8.0.26 | 8.0.26 |
| redhat/mariadb | <10.6.4 | 10.6.4 |
| redhat/mariadb | <10.5.12 | 10.5.12 |
| redhat/mariadb | <10.4.21 | 10.4.21 |
| redhat/mariadb | <10.3.31 | 10.3.31 |
| redhat/mariadb | <10.2.40 | 10.2.40 |
| MySQL | ||
| MySQL | >=5.7.0<=5.7.34 | |
| MySQL | >=8.0.0<=8.0.25 | |
| NetApp Active IQ Unified Manager for VMware vSphere | ||
| netapp active iq unified manager windows | ||
| NetApp OnCommand Insight | ||
| NetApp OnCommand Workflow Automation | ||
| NetApp SnapCenter | ||
| Fedora | =34 | |
| Fedora | =35 | |
| Ariadne CMS | >=10.2.0<10.2.40 | |
| Ariadne CMS | >=10.3.0<10.3.31 | |
| Ariadne CMS | >=10.4.0<10.4.21 | |
| Ariadne CMS | >=10.5.0<10.5.12 | |
| Ariadne CMS | >=10.6.0<10.6.4 |
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Reference Links
- https://www.oracle.com/security-alerts/cpujul2021.html
- https://www.zerodayinitiative.com/advisories/ZDI-21-880/
- 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://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1992824
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1992825
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1992826
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1992827
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1992828
- https://access.redhat.com/errata/RHSA-2021:3590
- https://access.redhat.com/security/cve/cve-2021-2389
- https://access.redhat.com/errata/RHSA-2021:3811
- https://access.redhat.com/errata/RHSA-2022:1007
- https://access.redhat.com/errata/RHSA-2022:1010
- https://access.redhat.com/errata/RHSA-2022:1556
- https://access.redhat.com/errata/RHSA-2022:1557
- https://access.redhat.com/errata/RHSA-2022:4818
- https://bugzilla.redhat.com/show_bug.cgi?id=1992309
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2UTW5KMPPDKIMGB4ULE2HS22HYLVKYIH/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VGR5ZTB5QEDRRC6G5U6TFNCIVBBKGS5J/
- https://security.netapp.com/advisory/ntap-20210723-0001/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2UTW5KMPPDKIMGB4ULE2HS22HYLVKYIH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGR5ZTB5QEDRRC6G5U6TFNCIVBBKGS5J/
Frequently Asked Questions
What is the severity of CVE-2021-2389?
CVE-2021-2389 is classified as a difficult-to-exploit vulnerability that allows unauthenticated network access.
How do I fix CVE-2021-2389?
To resolve CVE-2021-2389, upgrade MySQL Server to version 5.7.35 or 8.0.26, or update MariaDB to version 10.6.4, 10.5.12, 10.4.21, 10.3.31, or 10.2.40.
Which MySQL versions are affected by CVE-2021-2389?
CVE-2021-2389 affects MySQL Server versions 5.7.34 and prior, as well as 8.0.25 and prior.
What types of network access could exploit CVE-2021-2389?
CVE-2021-2389 can potentially be exploited via multiple network protocols within unauthorized access scenarios.
Are there any specific configurations that mitigate CVE-2021-2389?
Mitigation efforts for CVE-2021-2389 primarily involve updating to the recommended versions of MySQL and MariaDB.
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