CVE-2021-3764: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.

Affected products

• Linux Linux Kernel: up to and including 5.14.20; version 5.15 only

Published 2022-08-23. Last modified 2026-06-17.