CVE-2021-20321

Published Feb 18, 2022

Last updated a year ago

Overview

Description
A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.
Source
secalert@redhat.com
NVD status
Modified

Risk scores

CVSS 3.1

Type
Primary
Base score
4.7
Impact score
3.6
Exploitability score
1
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
4.7
Impact score
6.9
Exploitability score
3.4
Vector string
AV:L/AC:M/Au:N/C:N/I:N/A:C

Weaknesses

nvd@nist.gov
CWE-362
secalert@redhat.com
CWE-362

Social media

Hype score
Not currently trending

Configurations