CVE-2021-4157

HIGH

Linux Kernel 4.0-4.4.268 - Memory Corruption in NFS Mirroring

Title source: llm
STIX 2.1

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.

References (4)

Core 4
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2034342
Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpujul2022.html
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20220602-0007/

Scores

CVSS v3 8.0
EPSS 0.0006
EPSS Percentile 17.1%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-119
Status published
Products (12)
fedoraproject/fedora 35
linux/linux_kernel 4.0 - 4.4.269
netapp/h300e_firmware
netapp/h300s_firmware
netapp/h410s_firmware
netapp/h500e_firmware
netapp/h500s_firmware
netapp/h700e_firmware
netapp/h700s_firmware
oracle/communications_cloud_native_core_binding_support_function 22.1.1
... and 2 more
Published Mar 25, 2022
Tracked Since Feb 18, 2026