CVE-2021-4148 Information

Description

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.

CVSS Vector

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

Reference

https://lkml.org/lkml/2021/9/12/323 https://bugzilla.redhat.com/show_bug.cgi?id=2026487 https://lkml.org/lkml/2021/9/17/1037

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5