CVE-2019-19052

Published: 18 November 2019

A memory leak in the gs_can_open() function in drivers/net/can/usb/gs_usb.c in the Linux kernel before 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering usb_submit_urb() failures, aka CID-fb5be6a7b486.

From the Ubuntu Security Team

It was discovered that Geschwister Schneider USB CAN interface driver in the Linux kernel did not properly deallocate memory in certain failure conditions. A physically proximate attacker could use this to cause a denial of service (kernel memory exhaustion).

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
linux-oem Launchpad, Ubuntu, Debian	trusty	Does not exist
	bionic	Released (4.15.0-1066.76)
	disco	Ignored (end of life)
	eoan	Released (4.15.0-1066.76)
	focal	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Ignored (end of standard support, was needs-triage)
linux Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-74.84)
	disco	Released (5.0.0-38.41)
	eoan	Released (5.3.0-26.28)
	focal	Not vulnerable (5.4.0-9.12)
	trusty	Ignored (was needs-triage ESM criteria)
	upstream	Released (5.4~rc7)
	xenial	Released (4.4.0-171.200)
	Patches: Introduced by d08e973a77d128b25e01a08c34d89593fdf222da Fixed by fb5be6a7b4863ecc44963bb80ca614584b6c7817
linux-aws-5.0 Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1023.26~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-azure Launchpad, Ubuntu, Debian	eoan	Released (5.3.0-1009.10)
	bionic	Released (5.0.0-1028.30~18.04.1)
	disco	Released (5.0.0-1028.30)
	focal	Not vulnerable (5.4.0-1006.6)
	trusty	Released (4.15.0-1066.71~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (5.4~rc7)
	xenial	Released (4.15.0-1066.71)
linux-azure-5.3 Launchpad, Ubuntu, Debian	eoan	Does not exist
	bionic	Released (5.3.0-1009.10~18.04.1)
	disco	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-gcp-5.3 Launchpad, Ubuntu, Debian	focal	Does not exist
	bionic	Released (5.3.0-1010.11~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-gke-5.3 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.3.0-1011.12~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-oem-5.6 Launchpad, Ubuntu, Debian	bionic	Does not exist
	eoan	Does not exist
	focal	Not vulnerable (5.4.0-1002.4)
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-aws Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1057.59)
	disco	Released (5.0.0-1023.26)
	eoan	Released (5.3.0-1009.10)
	focal	Not vulnerable (5.4.0-1005.5)
	trusty	Released (4.4.0-1060.64) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (5.4~rc7)
	xenial	Released (4.4.0-1100.111)
linux-aws-hwe Launchpad, Ubuntu, Debian	bionic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Released (4.15.0-1057.59~16.04.1)
linux-azure-edge Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needs-triage)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Ignored (end of standard support, was needs-triage)
linux-gcp Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1028.29~18.04.1)
	disco	Released (5.0.0-1028.29)
	eoan	Released (5.3.0-1011.12)
	focal	Not vulnerable (5.4.0-1005.5)
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Released (4.15.0-1052.56)
linux-gcp-edge Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needs-triage)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-gke-4.15 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1050.53)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1027.28~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	bionic	Released (5.3.0-26.28~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Released (4.15.0-74.83~16.04.1)
linux-hwe-edge Launchpad, Ubuntu, Debian	bionic	Ignored (end of life, was needed)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Ignored (end of life, was needs-triage)
linux-kvm Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1052.52)
	disco	Released (5.0.0-1024.26)
	eoan	Released (5.3.0-1009.10)
	focal	Not vulnerable (5.4.0-1004.4)
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Released (4.4.0-1064.71)
linux-lts-trusty Launchpad, Ubuntu, Debian	bionic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	bionic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Released (4.4.0-171.200~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1033.38)
	disco	Ignored (end of life)
	eoan	Released (5.0.0-1033.38)
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1031.34)
	disco	Released (5.0.0-1009.14)
	eoan	Released (5.3.0-1008.9)
	focal	Not vulnerable (5.4.0-1005.5)
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Released (4.15.0-1031.34~16.04.1)
linux-oracle-5.0 Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1009.14~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-oracle-5.3 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.3.0-1011.12~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1053.57)
	disco	Released (5.0.0-1024.25)
	eoan	Released (5.3.0-1015.17)
	focal	Ignored (end of life, was needed)
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Released (4.4.0-1127.136)
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.3.0-1017.19~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1070.77)
	disco	Ignored (end of life, was pending)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.4~rc7)
	xenial	Released (4.4.0-1131.139)

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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