CVE-2021-40490

Aliases:UBUNTU-CVE-2021-40490DEBIAN-CVE-2021-40490
Advisory lineage Upstream: 0 Downstream: 36
Analyzed
Published: 03 Sept 2021, 00:50
Last modified:04 Aug 2024, 02:44

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7 HIGH
v3.1 (nvd)
EPSS Score
0.3% LOW
0% probability +0.27%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

03 Sept 2021, 00:50
Published
Vulnerability first disclosed
04 Aug 2024, 02:44
Last Modified
Vulnerability 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

  • v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 4.4AV:L/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.30%• Percentile: 23%

Techniques & Countermeasures

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The 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

  • debian•linux

    < 5.10.46-5 | < 5.14.6-1 | < 5.14.6-1 | < 5.14.6-1

  • ubuntu•linux

    all | < 4.4.0-222.255 | < 4.15.0-161.169 | < 5.4.0-89.100

  • ubuntu•linux-aws

    < 4.4.0-1102.107 | < 4.4.0-1138.152 | < 4.15.0-1114.121 | < 5.4.0-1058.61

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    < 5.11.0-1020.21~20.04.2

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1058.61~18.04.3

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2055.57 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1113.120~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1125.138~14.04.1 | < 4.15.0-1125.138~16.04.1 | all | < 5.4.0-1062.65

  • ubuntu•linux-azure-4.15

    < 4.15.0-1125.138

  • ubuntu•linux-azure-5.11

    < 5.11.0-1020.21~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1062.65~18.04.1

  • ubuntu•linux-azure-5.8

    < 5.8.0-1043.46~20.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2037.41 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1020.23

  • ubuntu•linux-dell300x

    < 4.15.0-1029.34

  • ubuntu•linux-fips

    < 4.4.0-1072.78 | all | < 4.15.0-1071.80 | < 5.4.0-1035.41

  • ubuntu•linux-gcp

    < 4.15.0-1110.124~16.04.1 | all | < 5.4.0-1056.60

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1110.124

  • ubuntu•linux-gcp-5.11

    < 5.11.0-1021.23~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1056.60~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2020.22 | all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke

    < 5.4.0-1054.57

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1054.57~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1025.26

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1025.26~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-161.169~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    < 5.11.0-38.42~20.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-89.100~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-ibm

    < 5.4.0-1006.7

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1103.112 | < 4.15.0-1101.103 | < 5.4.0-1048.50

  • ubuntu•linux-lts-xenial

    < 4.4.0-222.255~14.04.1

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    < 5.10.0-1050.52

  • ubuntu•linux-oem-5.13

    < 5.13.0-1014.18

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle

    < 4.15.0-1082.90~16.04.1 | < 4.15.0-1082.90 | < 5.4.0-1056.60

  • ubuntu•linux-oracle-5.0

    all

Showing first 50 affected entries in server-rendered view.

References (19)