CVE-2022-4543

Published: 11 January 2023

A flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems.

Notes

Author	Note
sbeattie	unfixed upstream as of 2023.01.10

Priority

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	bionic	Deferred (2023.01.10)
	focal	Deferred (2023.01.10)
	jammy	Deferred (2023.01.10)
	kinetic	Deferred (2023.01.10)
	trusty	Deferred (2023.01.10)
	upstream	Needs triage
	xenial	Deferred (2023.01.10)
linux-aws Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	jammy	Needs triage
	kinetic	Needs triage
	trusty	Needs triage
	upstream	Needs triage
	xenial	Needs triage
linux-aws-5.0 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-aws-5.3)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-aws-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-aws-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-aws-5.13)
	xenial	Does not exist
linux-aws-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-aws-5.15)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-aws-5.15)
	xenial	Does not exist
linux-aws-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-aws-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-aws-5.4)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-aws-5.4)
	xenial	Does not exist
linux-aws-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-aws-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-aws-5.11)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-aws-5.11)
	xenial	Does not exist
linux-aws-hwe Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Needs triage
linux-azure Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-azure-5.3)
	focal	Needs triage
	jammy	Needs triage
	kinetic	Needs triage
	trusty	Needs triage
	upstream	Needs triage
	xenial	Needs triage
linux-azure-4.15 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-azure-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-azure-5.13)
	xenial	Does not exist
linux-azure-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-azure-5.15)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-azure-5.15)
	xenial	Does not exist
linux-azure-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Needs triage
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-azure-5.4)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-azure-5.4)
	xenial	Does not exist
linux-azure-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-azure-5.11)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-azure-5.11)
	xenial	Does not exist
linux-azure-edge Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-azure-5.3)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-fde Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Needs triage
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-fde-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-bluefield Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-dell300x Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-fips Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Ignored (out of standard support)
	upstream	Needs triage
	xenial	Ignored (out of standard support)
linux-gcp Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-gcp-5.3)
	focal	Needs triage
	jammy	Needs triage
	kinetic	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Needs triage
linux-gcp-4.15 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gcp-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-gcp-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-gcp-5.13)
	xenial	Does not exist
linux-gcp-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-gcp-5.15)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-gcp-5.15)
	xenial	Does not exist
linux-gcp-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gcp-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-gcp-5.4)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-gcp-5.4)
	xenial	Does not exist
linux-gcp-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gcp-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-gcp-5.11)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-gcp-5.11)
	xenial	Does not exist
linux-gke Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Needs triage
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (reached end of standard support)
linux-gke-4.15 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-gke-5.3)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gke-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gke-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-gke-5.4)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-gke-5.4)
	xenial	Does not exist
linux-gke-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gkeop Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Needs triage
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gkeop-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	bionic	Ignored (replaced by linux-hwe-5.4)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Needs triage
linux-hwe-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-hwe-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-hwe-5.13)
	xenial	Does not exist
linux-hwe-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-hwe-5.15)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-hwe-5.15)
	xenial	Does not exist
linux-hwe-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Deferred
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-hwe-5.11)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-hwe-5.11)
	xenial	Does not exist
linux-hwe-edge Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-hwe-5.4)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (superseded by linux-hwe)
linux-ibm Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Needs triage
	kinetic	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-ibm-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-intel-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-intel-iotg Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Needs triage
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-intel-iotg-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-kvm Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	jammy	Needs triage
	kinetic	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Needs triage
linux-lowlatency Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Needs triage
	kinetic	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-lowlatency-hwe-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-lowlatency-hwe-5.19 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Deferred
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Needs triage
	upstream	Needs triage
	xenial	Does not exist
linux-oem Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (superseded by linux-hwe)
linux-oem-5.10 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-oem-5.14)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-oem-5.14)
	xenial	Does not exist
linux-oem-5.14 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-5.17 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Needs triage
	kinetic	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-5.6 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-6.0 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Needs triage
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-6.1 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	jammy	Deferred
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	jammy	Needs triage
	kinetic	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Needs triage
linux-oracle-5.0 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-oracle-5.3)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-oracle-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-oracle-5.13)
	xenial	Does not exist
linux-oracle-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle-5.15 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-oracle-5.4)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-oracle-5.4)
	xenial	Does not exist
linux-oracle-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-oracle-5.11)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-oracle-5.11)
	xenial	Does not exist
linux-raspi Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Needs triage
	kinetic	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-raspi-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Ignored (replaced by linux-raspi)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (end of standard support)
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-raspi-5.4)
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-raspi2-5.4)
	xenial	Does not exist
linux-riscv Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-riscv-5.8)
	jammy	Needs triage
	kinetic	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-riscv-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-riscv-5.13)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-riscv-5.13)
	xenial	Does not exist
linux-riscv-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-riscv-5.11)
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Ignored (superseded by linux-riscv-5.11)
	xenial	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (end of standard support)

Severity score breakdown

Parameter	Value
Base score	5.5
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Bugs

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