CVE Vulnerability

CVE-2021-4148

A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer.c in the filesystem. A missing sanity check may allow a local attacker with user privilege to cause a denial of service (DOS) problem.

4.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://lkml.org/lkml/2021/9/12/323 Exploit Mailing List
https://bugzilla.redhat.com/show_bug.cgi?id=2026487 Issue Tracking Third Party Advisory
https://lkml.org/lkml/2021/9/17/1037 Exploit Mailing List
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Information

Published : 2022-03-23 08:15

Updated : 2022-03-30 01:59

NVD link : CVE-2021-4148

Mitre link : CVE-2021-4148

Products Affected
No products.
CWE
CWE-354