CVE-2021-4157: fedoraproject fedora

Modified

AliasesUBUNTU-CVE-2021-4157DEBIAN-CVE-2021-4157

Published 25-03-2022Last modified 03-08-2024

Vulnerability summary

CVE-2021-4157 is a high (CVSS 8.0) vulnerability in fedoraproject fedora. EPSS estimates a 1.58% chance of exploitation in the next 30 days, higher than 75.6% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 8, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

8.0/10

010

High · v3.1 (NVD)

EPSS score

1.58%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 17 · Related 15

OPENSUSE-SU-2022:2549-1 RHSA-2022:1975 RHSA-2022:1988 SUSE-SU-2022:2376-1 SUSE-SU-2022:2377-1 SUSE-SU-2022:2379-1+11 more

Timeline

25-03-2022
PublishedVulnerability first disclosed.
03-08-2024
Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 3 sources · 3 versions

v4.07.1v3.18.0v2.07.4

EPSS trend

Probability

1.58%

Chance of exploitation in the next 30 days

Percentile

76%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.58% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.

Affected systems

Version check

Known conditions: adjacent network, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu58 products

linux< 4.4.0-224.257 | < 4.15.0-151.157 | < 5.4.0-80.90
linux-aws< 4.4.0-1104.109 | < 4.4.0-1140.154 | < 4.15.0-1109.116 | < 5.4.0-1054.57
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11< 5.11.0-1014.15~20.04.1
linux-aws-5.3All versions (No fix recorded)

linux-aws-5.4< 5.4.0-1054.57~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 4.15.0-2051.53 | All versions (No fix recorded) | < 5.4.0-1069.73+fips2
linux-aws-hwe< 4.15.0-1109.116~16.04.1
linux-azure< 4.15.0-1121.134~14.04.1 | < 4.15.0-1121.134~16.04.1 | All versions (No fix recorded) | < 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-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1055.57~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fips< 4.15.0-2033.37 | All versions (No fix recorded) | < 5.4.0-1073.76+fips1
linux-bluefield< 5.4.0-1016.19
linux-dell300x< 4.15.0-1027.32
linux-fips< 4.4.0-1074.80 | All versions (No fix recorded) | < 4.15.0-1066.75 | < 5.4.0-1031.36
linux-gcp< 4.15.0-1106.120~16.04.1 | All versions (No fix recorded) | < 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-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1049.53~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 4.15.0-2016.18 | All versions (No fix recorded) | < 5.4.0-1067.71~20.04.1
linux-gke< 5.4.0-1049.52
linux-gke-4.15All versions (No fix recorded)
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< 4.15.0-151.157~16.04.1 | All versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-80.90~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-kvm< 4.4.0-1105.114 | < 4.15.0-1097.99 | < 5.4.0-1044.46
linux-lts-xenial< 4.4.0-224.257~14.04.1
linux-oemAll versions (No fix recorded)
linux-oem-5.10< 5.10.0-1032.33
linux-oem-5.6All versions (No fix recorded)
linux-oracle< 4.15.0-1078.86~16.04.1 | < 4.15.0-1078.86 | < 5.4.0-1052.56
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11< 5.11.0-1013.14~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1052.56~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1041.45
linux-raspi-5.4< 5.4.0-1041.45~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1092.98 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-snapdragon< 4.15.0-1109.118

Show all 58

Netapp7 products

Show all 7

Debian1 product

linux< 5.10.38-1

Fedoraproject1 product

fedoraEOL35

Linux1 product

linux_kernel≥ 4.0, < 4.4.269 | ≥ 4.5, < 4.9.269 | ≥ 4.10, < 4.14.233 | ≥ 4.15, < 4.19.191 | ≥ 4.20, < 5.4.120 | ≥ 5.5, < 5.10.38 | ≥ 5.11, < 5.11.22 | ≥ 5.12, < 5.12.5

Oracle1 product