Use After Free in Mariadb

CVE-2022-27457

MariaDB Server v10.6.3 and below was discovered to contain an use-after-free in the component my_mb_wc_latin1 at /strings/ctype-latin1.c.

Vulnerability class: Use-After-Free

EPSS: 0.017 (74.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mariadb
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2022-27457?: CVE-2022-27457 is a high-severity vulnerability in Mariadb, classified under Use After Free. CVSS score: 7.5/10. Published 2022-04-14.
How severe is CVE-2022-27457?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-27457 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.