CVE-2021-4157

HIGH

CVSS Score

Published: March 25, 2022 at 06:02 PM UTC

Updated: June 17, 2026 at 04:19 AM UTC

18 products affected across 5 vendorsLinux KernelFedoraH700S Firmware

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Severity

HIGH8

Exploit prediction

EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fedora · Fedora Projectrpm

95%

Linux Kernel · Linux

95%

4.0 ≤ v < 4.4.2694.10 ≤ v < 4.14.2334.15 ≤ v < 4.19.1914.20 ≤ v < 5.4.1204.5 ≤ v < 4.9.2695.11 ≤ v < 5.11.225.12 ≤ v < 5.12.55.5 ≤ v < 5.10.38

Affected range stops below 4.14.233, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.19.191, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.4.269, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.9.269, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.10.38, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.11.22, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.12.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.4.120, so it looks safe — our inference, not a vendor statement

H300E Firmware · NetAppdrupal

95%

All versions

netapp-h300e (same device)

H300S Firmware · NetAppdrupal

95%

All versions

netapp-h300s (same device)

H410S Firmware · NetAppdrupal

95%

All versions

netapp-h410s (same device)

H500E Firmware · NetAppdrupal

95%

All versions

netapp-h500e (same device)

H500S Firmware · NetAppdrupal

95%

All versions

netapp-h500s (same device)

H700E Firmware · NetAppdrupal

95%

All versions

netapp-h700e (same device)

H700S Firmware · NetAppdrupal

95%

All versions

netapp-h700s (same device)

Communications Cloud Native Core Binding Support Function · Oracle

95%

22.1.1 22.1.3 22.2.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

x_refsource_MISCIssue TrackingThird Party Advisory

Source: [email protected]

https://bugzilla.redhat.com/show_bug.cgi?id=2034342

x_refsource_MISC

Source: [email protected]

https://lore.kernel.org/lkml/20210517140244.822185482%40linuxfoundation.org/

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://security.netapp.com/advisory/ntap-20220602-0007/

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://www.oracle.com/security-alerts/cpujul2022.html

CVSS

8HIGH[email protected]

Attack Vector: ADJACENT_NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-119

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