CVE-2021-3764

MEDIUM

Linux Kernel - DoS

Title source: llm

Description

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.

References (4)

[Third Party Advisory] https://access.redhat.com/security/cve/CVE-2021-3764

[Issue Tracking, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=1997467

[Patch, Third Party Advisory] https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680

View Patch ZIP pw:eip

[Third Party Advisory] https://security-tracker.debian.org/tracker/CVE-2021-3764

Scores

CVSS v3 5.5

EPSS 0.0002

EPSS Percentile 3.4%

Attack Vector LOCAL

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

Classification

CWE

CWE-401 CWE-400

Status published

Affected Products (5)

linux/linux_kernel < 5.14.20

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

Timeline

Published Aug 23, 2022

Tracked Since Feb 18, 2026