🛡️ UBUNTU-CVE-2021-3679
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2021-08-05
Updated 2026-06-15
Modified 2026-06-03
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 5.4.0-88.99
linux-aws 5.4.0-1057.60
linux-aws-5.0
linux-aws-5.11 5.11.0-1019.20~20.04.1
linux-aws-5.3
linux-aws-5.4 5.4.0-1057.60~18.04.1
linux-aws-5.8
linux-aws-fips
linux-aws-hwe 4.15.0-1112.119~16.04.1
linux-azure 5.4.0-1059.62
linux-azure-4.15 4.15.0-1124.137
linux-azure-5.11 5.11.0-1017.18~20.04.1
linux-azure-5.3
linux-azure-5.4 5.4.0-1059.62~18.04.1
linux-azure-5.8
linux-azure-edge
linux-azure-fips
linux-bluefield
linux-dell300x 4.15.0-1028.33
linux-fips
linux-gcp 5.4.0-1053.57
linux-gcp-4.15 4.15.0-1109.123
linux-gcp-5.11 5.11.0-1020.22~20.04.1
linux-gcp-5.3
linux-gcp-5.4 5.4.0-1053.57~18.04.1
linux-gcp-5.8
linux-gcp-edge
linux-gcp-fips
linux-gke 5.4.0-1053.56
linux-gke-4.15
linux-gke-5.4 5.4.0-1053.56~18.04.1
linux-gkeop 5.4.0-1024.25
linux-gkeop-5.4 5.4.0-1024.25~18.04.1
linux-hwe
linux-hwe-5.11 5.11.0-37.41~20.04.2
linux-hwe-5.4 5.4.0-87.98~18.04.1
linux-hwe-5.8
linux-hwe-edge
linux-ibm 5.4.0-1005.6
linux-intel-iot-realtime
linux-kvm 5.4.0-1047.49
linux-lts-xenial 4.4.0-219.252~14.04.1
linux-oem
linux-oem-5.10 5.10.0-1050.52
linux-oem-5.13 5.13.0-1014.18
linux-oem-5.6
linux-oracle 5.4.0-1055.59
linux-oracle-5.0
linux-oracle-5.11 5.11.0-1019.20~20.04.1
linux-oracle-5.3
linux-oracle-5.4 5.4.0-1055.59~18.04.1
linux-oracle-5.8
linux-raspi 5.4.0-1044.48
linux-raspi-5.4 5.4.0-1044.48~18.04.1
linux-raspi-realtime
linux-raspi2
linux-realtime
linux-riscv
linux-riscv-5.11 5.11.0-1020.21~20.04.1
linux-riscv-5.8
linux-snapdragon 4.15.0-1113.122

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