CVE-2018-19985

Published: 24 December 2018

The function hso_get_config_data in drivers/net/usb/hso.c in the Linux kernel through 4.19.8 reads if_num from the USB device (as a u8) and uses it to index a small array, resulting in an object out-of-bounds (OOB) read that potentially allows arbitrary read in the kernel address space.

From the Ubuntu Security Team

Hui Peng and Mathias Payer discovered that the Option USB High Speed driver in the Linux kernel did not properly validate metadata received from the device. A physically proximate attacker could use this to cause a denial of service (system crash).

Priority

Cvss 3 Severity Score

4.6

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	upstream	Released (4.20)
	trusty	Ignored (was needed ESM criteria)
	xenial	Released (4.4.0-143.169)
	bionic	Released (4.15.0-60.67)
	cosmic	Ignored (end of life)
	disco	Not vulnerable (4.19.0-12.13)
	eoan	Not vulnerable (5.0.0-13.14)
	Patches: Introduced by 72dc1c096c7051a48ab1dbb12f71976656b55eb5 Fixed by 5146f95df782b0ac61abde36567e718692725c89
linux-goldfish Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.20)
	xenial	Ignored (end of life)
linux-flo Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.20)
	xenial	Ignored (abandoned)
linux-aws Launchpad, Ubuntu, Debian	upstream	Released (4.20)
	trusty	Released (4.4.0-1039.42)
	xenial	Released (4.4.0-1077.87)
	bionic	Released (4.15.0-1047.49)
	cosmic	Ignored (end of life)
	disco	Not vulnerable (5.0.0-1001.1)
	eoan	Not vulnerable (5.0.0-1004.4)
linux-azure Launchpad, Ubuntu, Debian	upstream	Released (4.20)
	trusty	Ignored (was needed ESM criteria)
	xenial	Released (4.15.0-1056.61)
	bionic	Released (5.0.0-1014.14~18.04.1)
	cosmic	Ignored (end of life)
	disco	Not vulnerable (5.0.0-1001.1)
	eoan	Not vulnerable (5.0.0-1004.4)
linux-azure-edge Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1014.14~18.04.1)
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Released (4.15.0-1056.61)
linux-aws-hwe Launchpad, Ubuntu, Debian	upstream	Released (4.20)
	trusty	Does not exist
	xenial	Released (4.15.0-1047.49~16.04.1)
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
linux-aws-5.0 Launchpad, Ubuntu, Debian	upstream	Released (4.20)
	trusty	Does not exist
	xenial	Does not exist
	bionic	Not vulnerable (5.0.0-1021.24~18.04.1)
	disco	Does not exist
	eoan	Does not exist
linux-azure-5.3 Launchpad, Ubuntu, Debian	disco	Does not exist
	bionic	Not vulnerable (5.3.0-1007.8~18.04.1)
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Does not exist
linux-euclid Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Ignored (was needs-triage ESM criteria)
linux-gcp Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1042.45)
	cosmic	Ignored (end of life)
	disco	Not vulnerable (5.0.0-1001.1)
	eoan	Not vulnerable (5.0.0-1004.4)
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Released (4.15.0-1041.43)
linux-gcp-5.3 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.3.0-1008.9~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Does not exist
linux-gcp-edge Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1042.45)
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Does not exist
linux-gke Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Ignored (end of standard support)
linux-gke-4.15 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1041.43)
	disco	Does not exist
	eoan	Does not exist
	upstream	Released (4.20)
	xenial	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.0.0-1011.11~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	upstream	Released (4.20)
	xenial	Does not exist
linux-grouper Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.20)
	xenial	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-23.24~18.04.1)
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Released (4.15.0-60.67~16.04.1)
linux-hwe-edge Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.0.0-15.16~18.04.1)
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Released (4.15.0-60.67~16.04.1)
linux-kvm Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1043.43)
	cosmic	Ignored (end of life)
	disco	Not vulnerable (5.0.0-1001.1)
	eoan	Not vulnerable (5.0.0-1004.4)
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Released (4.4.0-1041.47)
linux-lts-trusty Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Does not exist
linux-lts-utopic Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Ignored (end of life, was ignored)
	upstream	Released (4.20)
	xenial	Does not exist
linux-lts-vivid Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Ignored (end of life, was ignored)
	upstream	Released (4.20)
	xenial	Does not exist
linux-lts-wily Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Ignored (end of life, was ignored)
	upstream	Released (4.20)
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Released (4.4.0-143.169~14.04.2)
	upstream	Released (4.20)
	xenial	Does not exist
linux-maguro Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.20)
	xenial	Does not exist
linux-mako Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.20)
	xenial	Ignored (abandoned)
linux-manta Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.20)
	xenial	Does not exist
linux-oem Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1056.65)
	cosmic	Ignored (end of life)
	disco	Ignored (end of life, was pending)
	eoan	Released (4.15.0-1059.68)
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Ignored (end of standard support, was needs-triage)
linux-oem-5.4 Launchpad, Ubuntu, Debian	bionic	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.0.0-1010.11)
	disco	Not vulnerable (5.0.0-1010.11)
	eoan	Not vulnerable (5.0.0-1010.11)
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1022.25)
	cosmic	Ignored (end of life)
	disco	Released (5.0.0-1004.8)
	eoan	Not vulnerable (5.3.0-1002.2)
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Released (4.15.0-1022.25~16.04.1)
linux-oracle-5.0 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.0.0-1007.12~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1044.47)
	cosmic	Ignored (end of life)
	disco	Not vulnerable (5.0.0-1004.4)
	eoan	Not vulnerable (5.0.0-1006.6)
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Released (4.4.0-1104.112)
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.3.0-1017.19~18.04.1)
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1062.69)
	cosmic	Does not exist
	disco	Not vulnerable (5.0.0-1010.10)
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.20)
	xenial	Released (4.4.0-1108.113)

Severity score breakdown

Parameter	Value
Base score	4.6
Attack vector	Physical
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

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