🛡️ UBUNTU-CVE-2021-4157
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-03-25
Updated 2026-06-15
Modified 2026-06-03
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 5.4.0-80.90
linux-aws 5.4.0-1054.57
linux-aws-5.0
linux-aws-5.11 5.11.0-1014.15~20.04.1
linux-aws-5.3
linux-aws-5.4 5.4.0-1054.57~18.04.1
linux-aws-5.8
linux-aws-fips
linux-aws-hwe 4.15.0-1109.116~16.04.1
linux-azure 5.4.0-1055.57
linux-azure-4.15 4.15.0-1121.134
linux-azure-5.11 5.11.0-1012.13~20.04.1
linux-azure-5.3
linux-azure-5.4 5.4.0-1055.57~18.04.1
linux-azure-5.8
linux-azure-edge
linux-azure-fips
linux-bluefield
linux-dell300x 4.15.0-1027.32
linux-fips
linux-gcp 5.4.0-1049.53
linux-gcp-4.15 4.15.0-1106.120
linux-gcp-5.11 5.11.0-1014.16~20.04.1
linux-gcp-5.3
linux-gcp-5.4 5.4.0-1049.53~18.04.1
linux-gcp-5.8
linux-gcp-fips
linux-gke 5.4.0-1049.52
linux-gke-4.15
linux-gke-5.4 5.4.0-1049.52~18.04.1
linux-gkeop 5.4.0-1021.22
linux-gkeop-5.4 5.4.0-1021.22~18.04.1
linux-hwe
linux-hwe-5.11
linux-hwe-5.4 5.4.0-80.90~18.04.1
linux-hwe-5.8
linux-hwe-edge
linux-intel-5.13
linux-intel-iot-realtime
linux-kvm 5.4.0-1044.46
linux-lts-xenial 4.4.0-224.257~14.04.1
linux-oem
linux-oem-5.10 5.10.0-1032.33
linux-oem-5.6
linux-oracle 5.4.0-1052.56
linux-oracle-5.0
linux-oracle-5.11 5.11.0-1013.14~20.04.1
linux-oracle-5.3
linux-oracle-5.4 5.4.0-1052.56~18.04.1
linux-oracle-5.8
linux-raspi 5.4.0-1041.45
linux-raspi-5.4 5.4.0-1041.45~18.04.1
linux-raspi-realtime
linux-raspi2
linux-realtime
linux-riscv
linux-riscv-5.8
linux-snapdragon 4.15.0-1109.118

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