CVE-2021-4197

Published: 31 December 2021

An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.

From the Ubuntu Security Team

Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. A local attacker could possibly use this to gain administrative privileges.

Priority

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package	Release	Status
linux-azure-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	impish	Does not exist
	focal	Released (5.13.0-1021.24~20.04.1)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-5.13 Launchpad, Ubuntu, Debian	focal	Released (5.13.0-1021.25~20.04.1)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Ignored (replaced by linux-hwe-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	xenial	Released (4.15.0-189.200~16.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux Launchpad, Ubuntu, Debian	focal	Released (5.4.0-117.132)
	impish	Released (5.13.0-37.42)
	upstream	Released (5.16)
	bionic	Released (4.15.0-189.200)
	trusty	Not vulnerable (3.11.0-12.19)
	hirsute	Ignored (reached end-of-life)
	xenial	Released (4.4.0-229.263)
	jammy	Not vulnerable (5.15.0-22.22)
	kinetic	Not vulnerable (5.15.0-25.25)
	lunar	Not vulnerable (5.19.0-21.21)
	Patches: Introduced by 187fe84067bd377047cfcb7f2bbc7c9dc12d290c Fixed by 1756d7994ad85c2479af6ae5a9750b92324685af Introduced by 5136f6365ce3eace5a926e10f16ed2a233db5ba9 Fixed by e57457641613fef0d147ede8bd6a3047df588b95
linux-hwe-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	bionic	Released (5.4.0-117.132~18.04.1)
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-5.8 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-edge Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Ignored (superseded by linux-hwe)
	bionic	Ignored (superseded by linux-hwe-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	trusty	Released (4.4.0-229.263~14.04.1)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-kvm Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Released (4.15.0-1123.128)
	hirsute	Ignored (reached end-of-life)
	xenial	Released (4.4.0-1110.120)
	upstream	Released (5.16)
	impish	Released (5.13.0-1018.19)
	jammy	Not vulnerable (5.15.0-1002.2)
	focal	Released (5.4.0-1068.72)
	kinetic	Not vulnerable (5.15.0-1004.4)
	lunar	Not vulnerable (5.19.0-1008.8)
linux-aws-5.0 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-aws-5.3)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.3 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-aws-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	bionic	Released (5.4.0-1078.84~18.04.1)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.8 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	focal	Ignored (was needed now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-hwe Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	xenial	Released (4.15.0-1137.148~16.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws Launchpad, Ubuntu, Debian	upstream	Released (5.16)
	impish	Released (5.13.0-1019.21)
	focal	Released (5.4.0-1078.84)
	bionic	Released (4.15.0-1137.148)
	trusty	Released (4.4.0-1109.115)
	hirsute	Ignored (reached end-of-life)
	xenial	Released (4.4.0-1145.160)
	jammy	Not vulnerable (5.15.0-1002.4)
	kinetic	Not vulnerable (5.15.0-1004.6)
	lunar	Not vulnerable (5.19.0-1009.9)
linux-azure Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-azure-5.3)
	impish	Released (5.13.0-1021.24)
	focal	Released (5.4.0-1083.87)
	trusty	Released (4.15.0-1146.161~14.04.1)
	hirsute	Ignored (reached end-of-life)
	xenial	Released (4.15.0-1146.161~16.04.1)
	upstream	Released (5.16)
	jammy	Not vulnerable (5.15.0-1001.2)
	kinetic	Not vulnerable (5.15.0-1003.4)
	lunar	Not vulnerable (5.19.0-1008.8)
linux-azure-4.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	bionic	Released (4.15.0-1146.161)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-5.3 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-azure-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	bionic	Released (5.4.0-1083.87~18.04.1)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-5.8 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Ignored (was needed now end-of-life)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-bluefield Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Released (5.4.0-1040.44)
	jammy	Not vulnerable (5.15.0-1011.13)
	kinetic	Does not exist
	lunar	Does not exist
linux-dell300x Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	bionic	Released (4.15.0-1049.54)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-edge Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-azure-5.3)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Ignored (superseded by linux-gcp-5.3)
	hirsute	Ignored (reached end-of-life)
	xenial	Released (4.15.0-1131.147~16.04.1)
	upstream	Released (5.16)
	impish	Released (5.13.0-1021.25)
	focal	Released (5.4.0-1078.84)
	jammy	Not vulnerable (5.15.0-1001.3)
	kinetic	Not vulnerable (5.15.0-1003.6)
	lunar	Not vulnerable (5.19.0-1008.8)
linux-gcp-4.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	bionic	Released (4.15.0-1131.147)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-5.3 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-gcp-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	bionic	Released (5.4.0-1078.84~18.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-5.8 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gcp-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Ignored (was needed now end-of-life)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gke Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	xenial	Ignored (reached end of standard support)
	upstream	Released (5.16)
	focal	Released (5.4.0-1074.79)
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-4.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-5.3 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	bionic	Released (5.4.0-1074.79~18.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-gkeop Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Released (5.4.0-1046.48)
	jammy	Not vulnerable (5.15.0-1001.2)
	kinetic	Does not exist
	lunar	Does not exist
linux-gkeop-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	bionic	Released (5.4.0-1046.48~18.04.1)
	kinetic	Does not exist
	lunar	Does not exist
linux-ibm Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Not vulnerable (5.15.0-1002.2)
	focal	Released (5.4.0-1026.29)
	kinetic	Not vulnerable (5.15.0-1002.2)
	lunar	Not vulnerable (5.19.0-1008.8)
linux-intel-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Ignored (was needs-triage now end-of-life)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	trusty	Does not exist
	hirsute	Ignored (reached end-of-life)
	xenial	Released (4.15.0-1102.113~16.04.1)
	upstream	Released (5.16)
	impish	Released (5.13.0-1023.28)
	bionic	Released (4.15.0-1102.113)
	jammy	Not vulnerable (5.15.0-1001.3)
	focal	Released (5.4.0-1076.83)
	kinetic	Not vulnerable (5.15.0-1002.4)
	lunar	Not vulnerable (5.19.0-1008.8)
linux-oracle-5.0 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-oracle-5.3)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle-5.3 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-oracle-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	bionic	Released (5.4.0-1076.83~18.04.1)
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle-5.8 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Ignored (was needed now end-of-life)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem Launchpad, Ubuntu, Debian	trusty	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	xenial	Ignored (superseded by linux-hwe)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-5.6 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-5.10 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Ignored (was needed now end-of-life)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Ignored (was needed now end-of-life)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-5.14 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Released (5.14.0-1022.24)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-raspi Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Ignored (reached end-of-life)
	impish	Released (5.13.0-1022.24)
	upstream	Released (5.16)
	focal	Released (5.4.0-1065.75)
	jammy	Not vulnerable (5.15.0-1003.3)
	kinetic	Not vulnerable (5.15.0-1005.5)
	lunar	Not vulnerable (5.19.0-1004.10)
linux-raspi2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	focal	Ignored (replaced by linux-raspi)
	hirsute	Does not exist
	impish	Does not exist
	bionic	Released (4.15.0-1115.123)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	xenial	Ignored (was needs-triage now end-of-life)
	lunar	Does not exist
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	bionic	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-raspi-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	bionic	Released (5.4.0-1065.75~18.04.1)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-riscv Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Ignored (superseded by linux-riscv-5.8)
	hirsute	Ignored (reached end-of-life)
	impish	Released (5.13.0-1017.19)
	upstream	Released (5.16)
	jammy	Not vulnerable (5.15.0-1004.4)
	kinetic	Not vulnerable (5.15.0-1007.7)
	lunar	Not vulnerable (5.19.0-1004.4)
linux-riscv-5.8 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-riscv-5.11 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Ignored (was needed now end-of-life)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	trusty	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	bionic	Released (4.15.0-1133.143)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	xenial	Ignored (was needs-triage now end-of-life)
	lunar	Does not exist
linux-hwe-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Released (5.13.0-37.42~20.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Released (5.13.0-1019.21~20.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-fips Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	xenial	Ignored (out of standard support)
	lunar	Does not exist
linux-oracle-5.13 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	focal	Released (5.13.0-1025.30~20.04.1)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-ibm-5.4 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	impish	Does not exist
	bionic	Released (5.4.0-1028.32~18.04.1)
	upstream	Released (5.16)
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-fde Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	impish	Does not exist
	upstream	Released (5.16)
	jammy	Not vulnerable (5.15.0-1001.2)
	kinetic	Does not exist
	lunar	Does not exist
	focal	Released (5.4.0-1083.87)
linux-lowlatency Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	jammy	Not vulnerable (5.15.0-22.22)
	upstream	Released (5.16)
	kinetic	Not vulnerable (5.15.0-24.24)
	lunar	Not vulnerable (5.19.0-1007.7)
linux-oem-5.17 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	jammy	Not vulnerable (5.17.0-1003.3)
	upstream	Released (5.16)
	kinetic	Not vulnerable (5.17.0-1003.3)
	lunar	Does not exist
linux-intel-iotg Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	jammy	Not vulnerable (5.15.0-1004.6)
	upstream	Released (5.16)
	kinetic	Does not exist
	lunar	Does not exist
linux-intel-iotg-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	impish	Does not exist
	jammy	Does not exist
	focal	Not vulnerable (5.15.0-1003.5~20.04.1)
	upstream	Released (5.16)
	kinetic	Does not exist
	lunar	Does not exist
linux-lowlatency-hwe-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	focal	Not vulnerable (5.15.0-33.34~20.04.1)
	upstream	Released (5.16)
	kinetic	Does not exist
	lunar	Does not exist
linux-hwe-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	focal	Not vulnerable (5.15.0-33.34~20.04.1)
	upstream	Released (5.16)
	kinetic	Does not exist
	lunar	Does not exist
linux-aws-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	upstream	Released (5.16)
	kinetic	Does not exist
	focal	Not vulnerable (5.15.0-1014.18~20.04.1)
	lunar	Does not exist
linux-gcp-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	focal	Not vulnerable (5.15.0-1006.9~20.04.1)
	upstream	Released (5.16)
	kinetic	Does not exist
	lunar	Does not exist
linux-gke-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	focal	Not vulnerable (5.15.0-1011.14~20.04.1)
	upstream	Released (5.16)
	lunar	Does not exist
linux-azure-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	focal	Not vulnerable (5.15.0-1007.8~20.04.1)
	upstream	Released (5.16)
	kinetic	Does not exist
	lunar	Does not exist
linux-oracle-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	focal	Not vulnerable (5.15.0-1007.9~20.04.1)
	upstream	Released (5.16)
	kinetic	Does not exist
	lunar	Does not exist
linux-azure-fde-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	upstream	Released (5.16)
	focal	Not vulnerable (5.15.0-1007.8~20.04.1)
	lunar	Does not exist
linux-oem-6.0 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	kinetic	Does not exist
	jammy	Not vulnerable (6.0.0-1006.6)
	upstream	Released (5.16)
	lunar	Does not exist
linux-oem-6.1 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	kinetic	Does not exist
	jammy	Not vulnerable (6.1.0-1004.4)
	upstream	Released (5.16)
	lunar	Does not exist
linux-hwe-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	upstream	Needs triage
	lunar	Does not exist
linux-lowlatency-hwe-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	upstream	Needs triage
	lunar	Does not exist
linux-azure-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	upstream	Needs triage
	lunar	Does not exist
linux-iot Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
linux-riscv-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
linux-azure-fde-5.19 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
linux-xilinx-zynqmp Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage

Severity score breakdown

Parameter	Value
Base score	7.8
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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