CVE-2020-12769

Published: 9 May 2020

An issue was discovered in the Linux kernel before 5.4.17. drivers/spi/spi-dw.c allows attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one, aka CID-19b61392c5a8.

From the Ubuntu Security Team

It was discovered that the DesignWare SPI controller driver in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service (system crash).

Priority

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-96.97)
	eoan	Released (5.3.0-46.38)
	focal	Not vulnerable (5.4.0-18.22)
	trusty	Ignored (was needs-triage ESM criteria)
	upstream	Released (5.5~rc6)
	xenial	Released (4.4.0-184.214)
	Patches: Introduced by e24c745272072fd2abe55209f1949b7b7ee602a7 Fixed by 19b61392c5a852b4e8a0bf35aecb969983c5932d
linux-aws Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1065.69)
	eoan	Released (5.3.0-1016.17)
	focal	Not vulnerable (5.4.0-1005.5)
	trusty	Released (4.4.0-1073.77) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (5.5~rc6)
	xenial	Released (4.4.0-1109.120)
linux-aws-5.0 Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needs-triage)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-aws-5.3 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.3.0-1016.17~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-aws-hwe Launchpad, Ubuntu, Debian	bionic	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Released (4.15.0-1065.69~16.04.1)
linux-azure Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needs-triage)
	eoan	Released (5.3.0-1019.20)
	focal	Not vulnerable (5.4.0-1006.6)
	trusty	Ignored (was needs-triage ESM criteria)
	upstream	Released (5.5~rc6)
	xenial	Released (4.15.0-1077.82)
linux-azure-4.15 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1082.92)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-azure-5.3 Launchpad, Ubuntu, Debian	bionic	Released (5.3.0-1019.20~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-azure-edge Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needs-triage)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-gcp Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needs-triage)
	eoan	Released (5.3.0-1017.18)
	focal	Not vulnerable (5.4.0-1005.5)
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Released (4.15.0-1060.64)
linux-gcp-4.15 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1071.81)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-gcp-5.3 Launchpad, Ubuntu, Debian	bionic	Released (5.3.0-1017.18~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-gcp-edge Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needs-triage)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-gke-4.15 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1057.60)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1033.34)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-gke-5.3 Launchpad, Ubuntu, Debian	bionic	Released (5.3.0-1017.18~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	bionic	Released (5.3.0-46.38~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Released (4.15.0-96.97~16.04.1)
linux-hwe-edge Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needs-triage)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Ignored (end of life, was needs-triage)
linux-kvm Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1058.59)
	eoan	Released (5.3.0-1015.16)
	focal	Not vulnerable (5.4.0-1004.4)
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Released (4.4.0-1075.82)
linux-lts-trusty Launchpad, Ubuntu, Debian	bionic	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	bionic	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Released (4.4.0-184.214~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-oem Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1079.89)
	eoan	Ignored (end of life, was pending)
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Ignored (end of standard support, was needs-triage)
linux-oem-5.6 Launchpad, Ubuntu, Debian	bionic	Does not exist
	eoan	Does not exist
	focal	Not vulnerable (5.6.0-1007.7)
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1047.52)
	eoan	Ignored (end of life, was pending)
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1037.41)
	eoan	Released (5.3.0-1014.15)
	focal	Not vulnerable (5.4.0-1005.5)
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Released (4.15.0-1037.41~16.04.1)
linux-oracle-5.0 Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needs-triage)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-oracle-5.3 Launchpad, Ubuntu, Debian	bionic	Released (5.3.0-1014.15~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-raspi Launchpad, Ubuntu, Debian	bionic	Does not exist
	eoan	Does not exist
	focal	Not vulnerable (5.4.0-1007.7)
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1060.64)
	eoan	Released (5.3.0-1022.24)
	focal	Ignored (end of life, was needs-triage)
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Released (4.4.0-1135.144)
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	bionic	Released (5.3.0-1022.24~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-riscv Launchpad, Ubuntu, Debian	bionic	Does not exist
	eoan	Does not exist
	focal	Not vulnerable (5.4.0-24.28)
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1076.83)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5~rc6)
	xenial	Released (4.4.0-1139.147)

Severity score breakdown

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

References

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