CVE-2021-43389

Aliases:UBUNTU-CVE-2021-43389DEBIAN-CVE-2021-43389
Advisory lineage Upstream: 0 Downstream: 39
Modified
Published: 04 Nov 2021, 18:39
Last modified:04 Aug 2024, 03:55

Vulnerability Summary

Overall Risk (default)
medium
32/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.72% LOW
1% probability +0.71%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

04 Nov 2021, 18:39
Published
Vulnerability first disclosed
04 Aug 2024, 03:55
Last Modified
Vulnerability information updated

Description

An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.72%• Percentile: 52%

Techniques & Countermeasures

  • CWE-125•Out-of-bounds Read

    The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • debian•linux

    < 5.10.84-1 | < 5.14.16-1 | < 5.14.16-1 | < 5.14.16-1

  • ubuntu•linux

    all | < 4.4.0-222.255 | < 4.15.0-166.174 | < 5.4.0-92.103

  • ubuntu•linux-aws

    < 4.4.0-1102.107 | < 4.4.0-1138.152 | < 4.15.0-1118.125 | < 5.4.0-1061.64

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    < 5.11.0-1023.24~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1061.64~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2059.61 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1118.125~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1129.142~14.04.1 | < 4.15.0-1129.142~16.04.1 | all | < 5.4.0-1065.68

  • ubuntu•linux-azure-4.15

    < 4.15.0-1129.142

  • ubuntu•linux-azure-5.11

    < 5.11.0-1023.24~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1065.68~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2041.45 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1023.26

  • ubuntu•linux-dell300x

    < 4.15.0-1033.38

  • ubuntu•linux-fips

    < 4.4.0-1072.78 | all | < 4.15.0-1075.84 | < 5.4.0-1038.44

  • ubuntu•linux-gcp

    < 4.15.0-1114.128~16.04.1 | all | < 5.4.0-1059.63

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1114.128

  • ubuntu•linux-gcp-5.11

    < 5.11.0-1024.26~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1059.63~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2024.26 | all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke

    < 5.4.0-1057.60

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1057.60~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1029.30

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1029.30~18.04.2

  • ubuntu•linux-hwe

    < 4.15.0-166.174~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    < 5.11.0-44.48~20.04.2

  • ubuntu•linux-hwe-5.13

    < 5.13.0-23.23~20.04.2

  • ubuntu•linux-hwe-5.4

    < 5.4.0-92.103~18.04.2

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-ibm

    < 5.4.0-1010.11

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1103.112 | < 4.15.0-1105.107 | < 5.4.0-1051.53

  • ubuntu•linux-lts-xenial

    < 4.4.0-222.255~14.04.1

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    < 5.10.0-1051.53

  • ubuntu•linux-oem-5.13

    < 5.13.0-1026.32

  • ubuntu•linux-oem-5.14

    < 5.14.0-1008.8

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle

    < 4.15.0-1085.93~16.04.1 | < 4.15.0-1085.93 | < 5.4.0-1059.63

Showing first 50 affected entries in server-rendered view.

References (23)