CVE Database›CVE-2022-21499

CVE-2022-21499

kernel: possible to use the debugger to write zero into a location of choice

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Severity

Moderate

Red Hat Product Security

6.7

CVSS 3.1

Review impact separately from score.

Published · May 25, 2022

Updated · July 3, 2026

Description

A flaw was found in the kernel/debug/debug_core.c in the Linux kernel in lockdown mode. This flaw allows an attacker with local access to trigger the debugger, bypass lockdown and write anonymously.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

CVSS / CWE

CVSS 3.1 · 6.7
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE-267 · Privilege Defined With Unsafe Actions