CVE-2021-4157

 

Published at: - 25-03-2022 08:15

Last modified: - 17-01-2023 10:23

Total changes: - 8

Description

An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could potentially use this flaw to crash the system or escalate privileges on the system.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://bugzilla.redhat.com/show_bug.cgi?id=2034342
• https://lore.kernel.org/lkml/20210517140244.822185482@linuxfoundation.org/
• https://security.netapp.com/advisory/ntap-20220602-0007/
• N/A-Third Party Advisory

 

Keywords

NVD

 

CVE-2021-4157

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures