Is CVE-2021-2022 in the CISA KEV catalog?

No. CVE-2021-2022 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-2022?

CVE-2021-2022 has a CVSS v3 base score of 4.4 (MEDIUM).

What is the EPSS score for CVE-2021-2022?

CVE-2021-2022 has an EPSS score of 1.90% (77th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-2022?

Upgrade mariadb-10.5 on debian 11 to 1:10.5.5-1 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2021-2022

MEDIUMEPSS 77th pctl

4.4

CVSS v3

NVD

Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 5.6.50 and prior, 5.7.32 and prior and 8.0.22 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 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).

How to fix

Remediation Available

mariadb-10.5Debian

Fixed in:1:10.5.5-1CVE-2021-2022

mysql-5.7Ubuntu

Fixed in:5.7.33-0ubuntu0.16.04.1USN-4716-1

Fixed in:5.7.33-0ubuntu0.18.04.1USN-4716-1

mysql-8.0Ubuntu

Fixed in:8.0.23-0ubuntu0.20.04.1USN-4716-1

mysql-server-5.7Ubuntu

Fixed in:5.7.33-0ubuntu0.16.04.1USN-4716-1

Fixed in:5.7.33-0ubuntu0.18.04.1USN-4716-1

mysql-server-8.0Ubuntu

Fixed in:8.0.23-0ubuntu0.20.04.1USN-4716-1

MariaDBWindows application

Affected:10.1.0 10.1.46Fixed in:10.1.46MariaDB Corporation Ab

Affected:10.3.0 10.3.24Fixed in:10.3.24MariaDB Corporation Ab

Affected:10.2.0 10.2.33Fixed in:10.2.33MariaDB Corporation Ab

Affected:10.4.0 10.4.14Fixed in:10.4.14MariaDB Corporation Ab

Affected:10.5.0 10.5.5Fixed in:10.5.5MariaDB Corporation Ab

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.90%probability of exploitation in 30 days

77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Vendor Advisory1

oracle.com

Third-Party Advisory2

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.