CVE-2021-3656

Published: 16 August 2021

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.

From the Ubuntu Security Team

Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory.

Mitigation

Disable nested virtualisation when loading the KVM AMD module:
   modprobe kvm_amd nested=0

Priority

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package	Release	Status
linux-azure-5.8 Launchpad, Ubuntu, Debian	focal	Released (5.8.0-1041.44~20.04.1)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	lunar	Does not exist
	mantic	Does not exist
linux Launchpad, Ubuntu, Debian	jammy	Not vulnerable (5.13.0-19.19)
	kinetic	Not vulnerable (5.15.0-25.25)
	bionic	Released (4.15.0-156.163)
	upstream	Released (5.14~rc7)
	impish	Not vulnerable (5.13.0-16.16)
	trusty	Not vulnerable (3.11.0-12.19)
	xenial	Not vulnerable (4.4.0-2.16)
	focal	Released (5.4.0-84.94)
	hirsute	Released (5.11.0-34.36)
	lunar	Not vulnerable (5.15.0-25.25)
	mantic	Not vulnerable (5.15.0-25.25)
	Patches: Introduced by 89c8a4984fc98e625517bfe5083342d77ee35811 Fixed by c7dfa4009965a9b2d7b329ee970eb8da0d32f0bc\|local-CVE-2021-3656-fix
linux-aws Launchpad, Ubuntu, Debian	jammy	Not vulnerable (5.13.0-1005.6)
	kinetic	Not vulnerable (5.15.0-1004.6)
	upstream	Released (5.14~rc7)
	impish	Not vulnerable (5.13.0-1005.6)
	trusty	Not vulnerable (4.4.0-1002.2)
	xenial	Not vulnerable (4.4.0-1001.10)
	focal	Released (5.4.0-1056.59)
	hirsute	Released (5.11.0-1017.18)
	bionic	Released (4.15.0-1111.118)
	lunar	Not vulnerable (5.15.0-1004.6)
	mantic	Not vulnerable (5.15.0-1004.6)
linux-aws-5.0 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-aws-5.3)
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	lunar	Does not exist
	mantic	Does not exist
linux-aws-5.11 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	impish	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	upstream	Released (5.14~rc7)
	focal	Released (5.11.0-1017.18~20.04.1)
	mantic	Does not exist
linux-aws-5.13 Launchpad, Ubuntu, Debian	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Does not exist
	impish	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Not vulnerable (5.13.0-1008.9~20.04.2)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-aws-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	focal	Not vulnerable
	mantic	Does not exist
linux-aws-5.3 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-aws-5.4)
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	lunar	Does not exist
	mantic	Does not exist
linux-aws-5.4 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	bionic	Released (5.4.0-1056.59~18.04.1)
	lunar	Does not exist
	mantic	Does not exist
linux-aws-5.8 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	focal	Ignored (end of life, was needs-triage)
	upstream	Released (5.14~rc7)
	lunar	Does not exist
	mantic	Does not exist
linux-aws-hwe Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	xenial	Released (4.15.0-1111.118~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	bionic	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	lunar	Does not exist
	mantic	Does not exist
linux-azure Launchpad, Ubuntu, Debian	impish	Not vulnerable (5.13.0-1004.5)
	jammy	Not vulnerable (5.13.0-1006.7)
	kinetic	Not vulnerable (5.15.0-1003.4)
	trusty	Released (4.15.0-1123.136~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (5.14~rc7)
	xenial	Released (4.15.0-1123.136~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	bionic	Ignored (superseded by linux-azure-5.3)
	focal	Released (5.4.0-1058.60)
	hirsute	Released (5.11.0-1015.16)
	lunar	Not vulnerable (5.15.0-1003.4)
	mantic	Not vulnerable (5.15.0-1003.4)
linux-azure-4.15 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	bionic	Released (4.15.0-1123.136)
	lunar	Does not exist
	mantic	Does not exist
linux-azure-5.11 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	impish	Does not exist
	bionic	Does not exist
	upstream	Released (5.14~rc7)
	focal	Released (5.11.0-1015.16~20.04.1)
	mantic	Does not exist
linux-azure-5.13 Launchpad, Ubuntu, Debian	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Does not exist
	impish	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Not vulnerable (5.13.0-1009.10~20.04.2)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-azure-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-azure-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-azure-5.3 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	bionic	Ignored (superseded by linux-azure-5.4)
	focal	Does not exist
	hirsute	Does not exist
	lunar	Does not exist
	mantic	Does not exist
linux-azure-5.4 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	focal	Does not exist
	bionic	Released (5.4.0-1058.60~18.04.1)
	lunar	Does not exist
	mantic	Does not exist
linux-azure-edge Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	bionic	Ignored (superseded by linux-azure-5.3)
	focal	Does not exist
	hirsute	Does not exist
	mantic	Does not exist
linux-azure-fde Launchpad, Ubuntu, Debian	bionic	Does not exist
	impish	Does not exist
	jammy	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Released (5.4.0-1058.60)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-azure-fde-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	focal	Not vulnerable (5.15.0-1007.8~20.04.1)
	mantic	Does not exist
linux-azure-fde-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-bluefield Launchpad, Ubuntu, Debian	impish	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	focal	Released (5.4.0-1019.22)
	jammy	Not vulnerable (5.15.0-1011.13)
	mantic	Does not exist
linux-dell300x Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	bionic	Released (4.15.0-1027.32)
	mantic	Does not exist
linux-fips Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Ignored (end of standard support)
	mantic	Does not exist
linux-gcp Launchpad, Ubuntu, Debian	impish	Not vulnerable (5.13.0-1003.4)
	jammy	Not vulnerable (5.13.0-1005.6)
	kinetic	Not vulnerable (5.15.0-1003.6)
	lunar	Not vulnerable (5.15.0-1003.6)
	trusty	Does not exist
	bionic	Ignored (superseded by linux-gcp-5.3)
	xenial	Released (4.15.0-1108.122~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (5.14~rc7)
	focal	Released (5.4.0-1052.56)
	hirsute	Released (5.11.0-1018.20)
	mantic	Not vulnerable (5.15.0-1003.6)
linux-gcp-4.15 Launchpad, Ubuntu, Debian	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	trusty	Does not exist
	impish	Does not exist
	xenial	Does not exist
	upstream	Released (5.14~rc7)
	bionic	Released (4.15.0-1108.122)
	mantic	Does not exist
linux-gcp-5.11 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	focal	Released (5.11.0-1018.20~20.04.2)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-gcp-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable (5.13.0-1008.9~20.04.3)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	mantic	Does not exist
linux-gcp-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-gcp-5.3 Launchpad, Ubuntu, Debian	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Ignored (superseded by linux-gcp-5.4)
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	impish	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	mantic	Does not exist
linux-gcp-5.4 Launchpad, Ubuntu, Debian	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	upstream	Released (5.14~rc7)
	bionic	Released (5.4.0-1052.56~18.04.1)
	mantic	Does not exist
linux-gcp-5.8 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	focal	Ignored (end of life, was needs-triage)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-gcp-edge Launchpad, Ubuntu, Debian	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-gcp-5.3)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-gke Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	focal	Released (5.4.0-1052.55)
	xenial	Ignored (end of standard support)
	mantic	Does not exist
linux-gke-4.15 Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needs-triage)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	bionic	Ignored (end of standard support, was needs-triage)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-gke-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-gke-5.3 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	bionic	Ignored (end of standard support, was needs-triage)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-gke-5.4 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	bionic	Released (5.4.0-1052.55~18.04.1)
	mantic	Does not exist
linux-gkeop Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Needs triage
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	focal	Released (5.4.0-1023.24)
	mantic	Does not exist
linux-gkeop-5.4 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	bionic	Released (5.4.0-1023.24~18.04.1)
	mantic	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	xenial	Released (4.15.0-156.163~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	bionic	Ignored (replaced by linux-hwe-5.4)
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	lunar	Does not exist
	mantic	Does not exist
linux-hwe-5.11 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	focal	Released (5.11.0-34.36~20.04.1)
	mantic	Does not exist
linux-hwe-5.13 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable (5.13.0-21.21~20.04.1)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-hwe-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-hwe-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-hwe-5.4 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	bionic	Released (5.4.0-84.94~18.04.1)
	upstream	Released (5.14~rc7)
	lunar	Does not exist
	mantic	Does not exist
linux-hwe-5.8 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	focal	Ignored (end of life, was pending)
	upstream	Released (5.14~rc7)
	lunar	Does not exist
	mantic	Does not exist
linux-hwe-edge Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Ignored (superseded by linux-hwe)
	bionic	Ignored (superseded by linux-hwe-5.4)
	focal	Does not exist
	hirsute	Does not exist
	lunar	Does not exist
	mantic	Does not exist
linux-ibm Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Not vulnerable (5.15.0-1002.2)
	kinetic	Not vulnerable (5.15.0-1002.2)
	lunar	Not vulnerable (5.15.0-1002.2)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Released (5.4.0-1004.5)
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	mantic	Not vulnerable (5.15.0-1002.2)
linux-ibm-5.4 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.4.0-1010.11~18.04.2)
	focal	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	mantic	Does not exist
linux-intel-5.13 Launchpad, Ubuntu, Debian	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Not vulnerable (5.13.0-1007.7)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-intel-iotg Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	upstream	Needs triage
	jammy	Not vulnerable (5.15.0-1004.6)
	mantic	Does not exist
linux-intel-iotg-5.15 Launchpad, Ubuntu, Debian	kinetic	Does not exist
	lunar	Does not exist
	bionic	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	focal	Not vulnerable (5.15.0-1003.5~20.04.1)
	mantic	Does not exist
linux-iot Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-kvm Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1099.101)
	impish	Not vulnerable (5.13.0-1002.2)
	jammy	Not vulnerable (5.13.0-1004.4)
	kinetic	Not vulnerable (5.15.0-1004.4)
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Not vulnerable (4.4.0-1004.9)
	focal	Released (5.4.0-1046.48)
	hirsute	Released (5.11.0-1015.16)
	lunar	Not vulnerable (5.15.0-1004.4)
	mantic	Does not exist
linux-lowlatency Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	jammy	Not vulnerable (5.15.0-22.22)
	kinetic	Not vulnerable (5.15.0-24.24)
	lunar	Not vulnerable (5.15.0-24.24)
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	mantic	Not vulnerable (5.15.0-24.24)
linux-lowlatency-hwe-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-lowlatency-hwe-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Not vulnerable (4.4.0-13.29~14.04.1)
	xenial	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	lunar	Does not exist
	mantic	Does not exist
linux-oem Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	bionic	Ignored (end of life, was needs-triage)
	upstream	Released (5.14~rc7)
	xenial	Ignored (end of standard support)
	mantic	Does not exist
linux-oem-5.10 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	focal	Released (5.10.0-1045.47)
	mantic	Does not exist
linux-oem-5.13 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	bionic	Does not exist
	focal	Released (5.13.0-1012.16)
	mantic	Does not exist
linux-oem-6.0 Launchpad, Ubuntu, Debian	jammy	Not vulnerable (6.0.0-1006.6)
	bionic	Does not exist
	focal	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-oem-5.14 Launchpad, Ubuntu, Debian	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	focal	Not vulnerable (5.14.0-1004.4)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-oem-5.17 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	jammy	Not vulnerable (5.17.0-1003.3)
	kinetic	Not vulnerable (5.17.0-1003.3)
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	mantic	Does not exist
linux-oem-5.6 Launchpad, Ubuntu, Debian	bionic	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	hirsute	Does not exist
	focal	Ignored (end of life, was needs-triage)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-oem-6.1 Launchpad, Ubuntu, Debian	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	mantic	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	bionic	Ignored (end of standard support, was needs-triage)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	mantic	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1080.88)
	impish	Not vulnerable (5.13.0-1008.10)
	jammy	Not vulnerable (5.13.0-1008.10)
	kinetic	Not vulnerable (5.15.0-1002.4)
	lunar	Not vulnerable (5.15.0-1002.4)
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Released (4.15.0-1080.88~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	focal	Released (5.4.0-1054.58)
	hirsute	Released (5.11.0-1017.18)
	mantic	Not vulnerable (5.15.0-1002.4)
linux-oracle-5.0 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-oracle-5.3)
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-oracle-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	upstream	Released (5.14~rc7)
	focal	Released (5.11.0-1017.18~20.04.1)
	mantic	Does not exist
linux-oracle-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable (5.13.0-1011.13~20.04.2)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Does not exist
	mantic	Does not exist
linux-oracle-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-oracle-5.3 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Ignored (superseded by linux-oracle-5.4)
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-oracle-5.4 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	bionic	Released (5.4.0-1054.58~18.04.1)
	mantic	Does not exist
linux-oracle-5.8 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	focal	Ignored (end of life, was needs-triage)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-raspi Launchpad, Ubuntu, Debian	impish	Not vulnerable (AMD processors only)
	jammy	Not vulnerable (AMD processors only)
	kinetic	Not vulnerable (AMD processors only)
	lunar	Not vulnerable (AMD processors only)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable (AMD processors only)
	upstream	Released (5.14~rc7)
	hirsute	Released (5.11.0-1017.18)
	mantic	Not vulnerable (AMD processors only)
linux-raspi-5.4 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (AMD processors only)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (AMD processors only)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	focal	Not vulnerable (AMD processors only)
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	xenial	Not vulnerable (AMD processors only)
	mantic	Does not exist
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (AMD processors only)
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-riscv Launchpad, Ubuntu, Debian	impish	Not vulnerable (AMD processors only)
	jammy	Not vulnerable (AMD processors only)
	kinetic	Not vulnerable (AMD processors only)
	lunar	Not vulnerable (AMD processors only)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable (AMD processors only)
	upstream	Released (5.14~rc7)
	hirsute	Released (5.11.0-1018.19)
	mantic	Not vulnerable (AMD processors only)
linux-riscv-5.11 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	focal	Released (5.11.0-1018.19~20.04.2)
	mantic	Does not exist
linux-riscv-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-riscv-5.8 Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	hirsute	Does not exist
	focal	Not vulnerable (AMD processors only)
	upstream	Released (5.14~rc7)
	mantic	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	upstream	Released (5.14~rc7)
	bionic	Released (4.15.0-1112.121)
	xenial	Not vulnerable (AMD processors only)
	mantic	Does not exist
linux-xilinx-zynqmp Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Not vulnerable
	jammy	Not vulnerable
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
	mantic	Does not exist
linux-nvidia 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
	mantic	Does not exist
linux-gkeop-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
	mantic	Does not exist
linux-aws-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
	mantic	Does not exist
linux-gcp-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
	mantic	Does not exist
linux-riscv-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
	mantic	Does not exist
linux-allwinner Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Not vulnerable
	lunar	Not vulnerable
	upstream	Needs triage
	mantic	Does not exist
linux-allwinner-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
	mantic	Does not exist
linux-starfive Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Not vulnerable
	lunar	Not vulnerable
	upstream	Needs triage
	mantic	Not vulnerable
linux-starfive-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
	mantic	Does not exist
linux-aws-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
	mantic	Does not exist
linux-hwe-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
	mantic	Does not exist
linux-lowlatency-hwe-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
	mantic	Does not exist
linux-ibm-5.15 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Not vulnerable
	jammy	Does not exist
	lunar	Does not exist
	upstream	Needs triage
	mantic	Does not exist
linux-gcp-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
	mantic	Does not exist
linux-azure-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
	mantic	Does not exist
linux-azure-fde-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	upstream	Needs triage
	mantic	Does not exist
linux-nvidia-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	mantic	Does not exist
	upstream	Needs triage
linux-starfive-6.2 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	mantic	Does not exist
	upstream	Needs triage
linux-laptop Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	lunar	Does not exist
	mantic	Not vulnerable
	upstream	Needs triage
linux-oem-6.5 Launchpad, Ubuntu, Debian	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	focal	Does not exist
	jammy	Not vulnerable
	lunar	Does not exist
	mantic	Does not exist
	upstream	Needs triage

Severity score breakdown

Parameter	Value
Base score	8.8
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Changed
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

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