CVE-2021-3655

Aliases:UBUNTU-CVE-2021-3655DEBIAN-CVE-2021-3655
Advisory lineage Upstream: 0 Downstream: 29
Modified
Published: 05 Aug 2021, 20:48
Last modified:03 Aug 2024, 17:01

Vulnerability Summary

Overall Risk (default)
low
13/100
CVSS Score
3.3 LOW
v3.1 (nvd)
EPSS Score
0.31% LOW
0% probability +0.28%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

05 Aug 2021, 20:48
Published
Vulnerability first disclosed
03 Aug 2024, 17:01
Last Modified
Vulnerability information updated

Description

A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.

CVSS Metrics

  • v3.1•LOW•Score: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
  • v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.31%• Percentile: 24%

Techniques & Countermeasures

  • CWE-909•Missing Initialization of Resource

    The product does not initialize a critical resource.

  • CWE-20•Improper Input Validation

    The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected Systems

  • debian•linux

    < 5.10.46-3 | < 5.10.46-3 | < 5.10.46-3 | < 5.10.46-3

  • ubuntu•linux

    all | < 4.15.0-162.170 | < 5.4.0-91.102

  • ubuntu•linux-aws

    all | < 4.15.0-1115.122 | < 5.4.0-1060.63

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    < 5.11.0-1022.23~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1060.63~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2056.58 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1115.122~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1126.139~14.04.1 | < 4.15.0-1126.139~16.04.1 | all | < 5.4.0-1064.67

  • ubuntu•linux-azure-4.15

    < 4.15.0-1126.139

  • ubuntu•linux-azure-5.11

    < 5.11.0-1022.23~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1064.67~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde-5.15

    < 5.15.0-1114.123~20.04.1

  • ubuntu•linux-azure-fips

    < 4.15.0-2038.42 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1022.25

  • ubuntu•linux-dell300x

    < 4.15.0-1030.35

  • ubuntu•linux-fips

    all | < 4.15.0-1072.81 | < 5.4.0-1037.43

  • ubuntu•linux-gcp

    < 4.15.0-1111.125~16.04.1 | all | < 5.4.0-1058.62

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1111.125

  • ubuntu•linux-gcp-5.11

    < 5.11.0-1023.25~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1058.62~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2021.23 | all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke

    < 5.4.0-1056.59

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1056.59~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1027.28

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1027.28~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-162.170~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    < 5.11.0-41.45~20.04.1

  • ubuntu•linux-hwe-5.13

    < 5.13.0-22.22~20.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-91.102~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-ibm

    < 5.4.0-1008.9

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    all | < 4.15.0-1102.104 | < 5.4.0-1050.52

  • ubuntu•linux-lts-xenial

    all

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    < 5.10.0-1051.53

  • ubuntu•linux-oem-5.13

    < 5.13.0-1020.24

  • ubuntu•linux-oem-5.6

    all

Showing first 50 affected entries in server-rendered view.

References (14)