CVE-2021-4002

Published Mar 3, 2022

Last updated 2 years ago

Overview

Description
A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.
Source
secalert@redhat.com
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
4.4
Impact score
2.5
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
3.6
Impact score
4.9
Exploitability score
3.9
Vector string
AV:L/AC:L/Au:N/C:P/I:P/A:N

Weaknesses

nvd@nist.gov
CWE-401
secalert@redhat.com
CWE-459

Social media

Hype score
Not currently trending

Configurations