CVE-2021-3764

Aliases:UBUNTU-CVE-2021-3764DEBIAN-CVE-2021-3764
Advisory lineage Upstream: 0 Downstream: 32
Modified
Published: 23 Aug 2022, 15:52
Last modified:03 Aug 2024, 17:09

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.27% LOW
0% probability +0.25%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Aug 2022, 15:52
Published
Vulnerability first disclosed
03 Aug 2024, 17:09
Last Modified
Vulnerability information updated

Description

A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.

CVSS Metrics

  • v4.0•MEDIUM•Score: 5.7CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.27%• Percentile: 20%

Techniques & Countermeasures

  • CWE-400•Uncontrolled Resource Consumption

    The product does not properly control the allocation and maintenance of a limited resource.

  • CWE-401•Missing Release of Memory after Effective Lifetime

    The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Affected Systems

  • debian•linux

    < 5.10.84-1 | < 5.14.12-1 | < 5.14.12-1 | < 5.14.12-1

  • ubuntu•linux

    < 4.15.0-163.171 | < 5.4.0-91.102

  • ubuntu•linux-aws

    < 4.15.0-1116.123 | < 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

    < 4.15.0-2057.59 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1116.123~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1127.140~14.04.1 | < 4.15.0-1127.140~16.04.1 | all | < 5.4.0-1064.67

  • ubuntu•linux-azure-4.15

    < 4.15.0-1127.140

  • 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-fips

    < 4.15.0-2039.43 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1022.25

  • ubuntu•linux-dell300x

    < 4.15.0-1031.36

  • ubuntu•linux-fips

    < 4.15.0-1073.82 | all | < 5.4.0-1037.43

  • ubuntu•linux-gcp

    < 4.15.0-1112.126~16.04.1 | all | < 5.4.0-1058.62

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1112.126

  • 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

    < 4.15.0-2022.24 | 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

    < 4.15.0-163.171~16.04.1 | 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

    < 4.15.0-1103.105 | < 5.4.0-1050.52

  • 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-5.14

    < 5.14.0-1007.7

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle

    < 4.15.0-1084.92~16.04.1 | < 4.15.0-1084.92 | < 5.4.0-1058.62

Showing first 50 affected entries in server-rendered view.

References (12)