vulnerability

Ubuntu: (Multiple Advisories) (CVE-2021-3679): Linux kernel vulnerabilities

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Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
Aug 5, 2021
Added
Sep 28, 2021
Modified
Jan 23, 2025

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.

Solution(s)

ubuntu-upgrade-linux-image-4-15-0-1028-dell300xubuntu-upgrade-linux-image-4-15-0-1081-oracleubuntu-upgrade-linux-image-4-15-0-1096-raspi2ubuntu-upgrade-linux-image-4-15-0-1100-kvmubuntu-upgrade-linux-image-4-15-0-1109-gcpubuntu-upgrade-linux-image-4-15-0-1112-awsubuntu-upgrade-linux-image-4-15-0-1113-snapdragonubuntu-upgrade-linux-image-4-15-0-1124-azureubuntu-upgrade-linux-image-4-15-0-159-genericubuntu-upgrade-linux-image-4-15-0-159-generic-lpaeubuntu-upgrade-linux-image-4-15-0-159-lowlatencyubuntu-upgrade-linux-image-4-4-0-1099-awsubuntu-upgrade-linux-image-4-4-0-1100-kvmubuntu-upgrade-linux-image-4-4-0-1102-awsubuntu-upgrade-linux-image-4-4-0-1103-kvmubuntu-upgrade-linux-image-4-4-0-1135-awsubuntu-upgrade-linux-image-4-4-0-1138-awsubuntu-upgrade-linux-image-4-4-0-219-genericubuntu-upgrade-linux-image-4-4-0-219-lowlatencyubuntu-upgrade-linux-image-4-4-0-222-genericubuntu-upgrade-linux-image-4-4-0-222-lowlatencyubuntu-upgrade-linux-image-5-10-0-1050-oemubuntu-upgrade-linux-image-5-11-0-1017-azureubuntu-upgrade-linux-image-5-11-0-1017-kvmubuntu-upgrade-linux-image-5-11-0-1019-awsubuntu-upgrade-linux-image-5-11-0-1019-oracleubuntu-upgrade-linux-image-5-11-0-1019-raspiubuntu-upgrade-linux-image-5-11-0-1019-raspi-nolpaeubuntu-upgrade-linux-image-5-11-0-1020-gcpubuntu-upgrade-linux-image-5-11-0-37-genericubuntu-upgrade-linux-image-5-11-0-37-generic-64kubuntu-upgrade-linux-image-5-11-0-37-generic-lpaeubuntu-upgrade-linux-image-5-11-0-37-lowlatencyubuntu-upgrade-linux-image-5-13-0-1014-oemubuntu-upgrade-linux-image-5-4-0-1024-gkeopubuntu-upgrade-linux-image-5-4-0-1044-raspiubuntu-upgrade-linux-image-5-4-0-1047-kvmubuntu-upgrade-linux-image-5-4-0-1053-gcpubuntu-upgrade-linux-image-5-4-0-1053-gkeubuntu-upgrade-linux-image-5-4-0-1055-oracleubuntu-upgrade-linux-image-5-4-0-1057-awsubuntu-upgrade-linux-image-5-4-0-1059-azureubuntu-upgrade-linux-image-5-4-0-87-genericubuntu-upgrade-linux-image-5-4-0-87-generic-lpaeubuntu-upgrade-linux-image-5-4-0-87-lowlatencyubuntu-upgrade-linux-image-5-4-0-88-genericubuntu-upgrade-linux-image-5-4-0-88-generic-lpaeubuntu-upgrade-linux-image-5-4-0-88-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-aws-lts-18-04ubuntu-upgrade-linux-image-aws-lts-20-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-edgeubuntu-upgrade-linux-image-azure-lts-18-04ubuntu-upgrade-linux-image-azure-lts-20-04ubuntu-upgrade-linux-image-dell300xubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-18-04ubuntu-upgrade-linux-image-gcp-lts-20-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-5-4ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04bubuntu-upgrade-linux-image-oem-20-04cubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-upgrade-linux-image-oracle-lts-20-04ubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-linux-image-virtual-hwe-18-04ubuntu-upgrade-linux-image-virtual-hwe-20-04ubuntu-upgrade-linux-image-virtual-lts-xenial

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