Resource exhaustion in Mariadb
CVE-2021-46668
MariaDB through 10.5.9 allows an application crash via certain long SELECT DISTINCT statements that improperly interact with storage-engine resource limitations for temporary data structures.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.004 (32.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Mariadb
- Fedoraproject Fedora — versions 34, 35, 36
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Patch, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2021-46668?
- CVE-2021-46668 is a medium-severity vulnerability in Mariadb, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2022-02-01.
- How severe is CVE-2021-46668?
- Medium severity. CVSS v3 base score is 5.5 out of 10.