UBUNTU-CVE-2021-3759

Advisory lineage Upstream: 1 Downstream: 8
Upstream
CVE-2021-3759
Published: 02 Sept 2021, 00:00
Last modified:04 Jul 2026, 19:19

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Sept 2021, 00:00
Published
Vulnerability first disclosed
04 Jul 2026, 19:19
Last Modified
Vulnerability information updated

Description

A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.

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

Affected Systems

  • ubuntu•linux

    < 4.15.0-162.170 | < 5.4.0-90.101

  • ubuntu•linux-aws

    < 4.15.0-1115.122 | < 5.4.0-1059.62

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    < 5.11.0-1021.22~20.04.2

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1059.62~18.04.1

  • 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 | < 5.4.0-1063.66

  • ubuntu•linux-azure-4.15

    < 4.15.0-1126.139

  • ubuntu•linux-azure-5.11

    < 5.11.0-1021.22~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1063.66~18.04.1

  • ubuntu•linux-azure-5.8

    < 5.8.0-1043.46~20.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fips

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

  • ubuntu•linux-bluefield

    < 5.4.0-1021.24 | all

  • ubuntu•linux-dell300x

    < 4.15.0-1030.35

  • ubuntu•linux-fips

    < 4.15.0-1072.81 | all | < 5.4.0-1036.42

  • ubuntu•linux-gcp

    < 4.15.0-1111.125~16.04.1 | all | < 5.4.0-1057.61

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1111.125

  • ubuntu•linux-gcp-5.11

    < 5.11.0-1022.24~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1057.61~18.04.1

  • 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

    < 5.4.0-1055.58

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1055.58~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1026.27

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1026.27~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-162.170~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    < 5.11.0-40.44~20.04.2

  • ubuntu•linux-hwe-5.4

    < 5.4.0-90.101~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-ibm

    < 5.4.0-1007.8

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.15.0-1102.104 | < 5.4.0-1049.51

  • ubuntu•linux-nvidia

    all

  • ubuntu•linux-nvidia-7.0

    all

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    < 5.10.0-1050.52

  • ubuntu•linux-oem-5.13

    < 5.13.0-1017.21

  • ubuntu•linux-oem-5.14

    all

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle

    < 4.15.0-1083.91~16.04.1 | < 4.15.0-1083.91 | < 5.4.0-1057.61

Showing first 50 affected entries in server-rendered view.

References (10)