CVE-2021-40490: debian debian_linux

Analyzed

AliasesUBUNTU-CVE-2021-40490DEBIAN-CVE-2021-40490

Published 03-09-2021Last modified 04-08-2024

Vulnerability summary

CVE-2021-40490 is a high (CVSS 7.0) vulnerability in debian debian_linux. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 23.4% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.0/10

010

High · v3.1 (NVD)

EPSS score

0.31%

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

Timeline

03-09-2021
PublishedVulnerability first disclosed.
04-08-2024
Last modifiedVulnerability information updated.

Description

A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13.

CVSS metrics

4 scores · 3 sources · 2 versions

v3.17.0v2.04.4

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.30% 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-362Concurrent Execution using Shared Resource with Improper SynchronizationThe product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected systems

Version check

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

Ubuntu62 products

linuxAll versions (No fix recorded) | < 4.4.0-222.255 | < 4.15.0-161.169 | < 5.4.0-89.100
linux-aws< 4.4.0-1102.107 | < 4.4.0-1138.152 | < 4.15.0-1114.121 | < 5.4.0-1058.61
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11< 5.11.0-1020.21~20.04.2
linux-aws-5.3All versions (No fix recorded)

linux-aws-5.4< 5.4.0-1058.61~18.04.3
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 4.15.0-2055.57 | All versions (No fix recorded) | < 5.4.0-1069.73+fips2
linux-aws-hwe< 4.15.0-1113.120~16.04.1
linux-azure< 4.15.0-1125.138~14.04.1 | < 4.15.0-1125.138~16.04.1 | All versions (No fix recorded) | < 5.4.0-1062.65
linux-azure-4.15< 4.15.0-1125.138
linux-azure-5.11< 5.11.0-1020.21~20.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1062.65~18.04.1
linux-azure-5.8< 5.8.0-1043.46~20.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fips< 4.15.0-2037.41 | All versions (No fix recorded) | < 5.4.0-1073.76+fips1
linux-bluefield< 5.4.0-1020.23
linux-dell300x< 4.15.0-1029.34
linux-fips< 4.4.0-1072.78 | All versions (No fix recorded) | < 4.15.0-1071.80 | < 5.4.0-1035.41
linux-gcp< 4.15.0-1110.124~16.04.1 | All versions (No fix recorded) | < 5.4.0-1056.60
linux-gcp-4.15< 4.15.0-1110.124
linux-gcp-5.11< 5.11.0-1021.23~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1056.60~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-edgeAll versions (No fix recorded)
linux-gcp-fips< 4.15.0-2020.22 | All versions (No fix recorded) | < 5.4.0-1067.71~20.04.1
linux-gke< 5.4.0-1054.57
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.4< 5.4.0-1054.57~18.04.1
linux-gkeop< 5.4.0-1025.26
linux-gkeop-5.4< 5.4.0-1025.26~18.04.1
linux-hwe< 4.15.0-161.169~16.04.1 | All versions (No fix recorded)
linux-hwe-5.11< 5.11.0-38.42~20.04.1
linux-hwe-5.4< 5.4.0-89.100~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1006.7
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-kvm< 4.4.0-1103.112 | < 4.15.0-1101.103 | < 5.4.0-1048.50
linux-lts-xenial< 4.4.0-222.255~14.04.1
linux-oemAll versions (No fix recorded)
linux-oem-5.10< 5.10.0-1050.52
linux-oem-5.13< 5.13.0-1014.18
linux-oem-5.6All versions (No fix recorded)
linux-oracle< 4.15.0-1082.90~16.04.1 | < 4.15.0-1082.90 | < 5.4.0-1056.60
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11< 5.11.0-1020.21~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1056.60~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1045.49
linux-raspi-5.4< 5.4.0-1045.49~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1097.103 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11< 5.11.0-1021.22~20.04.1
linux-riscv-5.8All versions (No fix recorded)
linux-snapdragon< 4.15.0-1114.123

Show all 62

Netapp14 products

Show all 14

Debian2 products

linux< 5.14.6-1
debian_linuxEOL9.0 | 11.0

Fedoraproject1 product

fedoraEOL33 | 34

Linux1 product

linux_kernel≥ 3.8, < 4.4.284 | ≥ 4.5, < 4.9.283 | ≥ 4.10, < 4.14.247 | ≥ 4.15, < 4.19.207 | ≥ 4.20, < 5.4.145 | ≥ 5.5, < 5.10.63 | ≥ 5.11, < 5.13.15 | ≥ 5.14, < 5.14.2

5 vendors · 80 products