CVE-2018-16276

Published: 31 August 2018

An issue was discovered in yurex_read in drivers/usb/misc/yurex.c in the Linux kernel before 4.17.7. Local attackers could use user access read/writes with incorrect bounds checking in the yurex USB driver to crash the kernel or potentially escalate privileges.

From the Ubuntu Security Team

It was discovered that the YUREX USB device driver for the Linux kernel did not properly restrict user space reads or writes. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-43.46)
	cosmic	Not vulnerable (4.17.0-6.7)
	precise	Ignored (was needed ESM criteria)
	trusty	Released (3.13.0-164.214)
	upstream	Released (4.18~rc5)
	xenial	Released (4.4.0-137.163)
	Patches: Introduced by 6bc235a2e24a5ef677daee3fd4f74f6cd643e23c Fixed by f1e255d60ae66a9f672ff9a207ee6cd8e33d2679
linux-aws Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1031.33)
	cosmic	Not vulnerable (4.18.0-1002.3)
	precise	Does not exist
	trusty	Released (4.4.0-1031.34)
	upstream	Released (4.18~rc5)
	xenial	Released (4.4.0-1069.79)
linux-aws-hwe Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Released (4.15.0-1031.33~16.04.1)
linux-azure Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1036.38)
	cosmic	Not vulnerable (4.18.0-1003.3)
	precise	Does not exist
	trusty	Released (4.15.0-1036.38~14.04.2)
	upstream	Released (4.18~rc5)
	xenial	Released (4.15.0-1036.38~16.04.1)
linux-azure-edge Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.18.0-1006.6~18.04.1)
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Released (4.18.0-1006.6~16.04.2)
linux-euclid Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Ignored (was needed ESM criteria)
linux-flo Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.18~rc5)
	xenial	Ignored (abandoned)
linux-gcp Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1026.27)
	cosmic	Not vulnerable (4.18.0-1002.3)
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Released (4.15.0-1026.27~16.04.1)
linux-gcp-edge Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.18.0-1004.5~18.04.1)
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Does not exist
linux-gke Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Ignored (end-of-life)
linux-goldfish Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.18~rc5)
	xenial	Ignored (end-of-life)
linux-grouper Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.18~rc5)
	xenial	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.18.0-13.14~18.04.1)
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Released (4.15.0-43.46~16.04.1)
linux-hwe-edge Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.18.0-13.14~18.04.1)
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Released (4.15.0-43.46~16.04.1)
linux-kvm Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1028.28)
	cosmic	Not vulnerable (4.18.0-1002.2)
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Released (4.4.0-1035.41)
linux-lts-trusty Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Released (3.13.0-164.214~precise1)
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Does not exist
linux-lts-utopic Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was ignored [out of standard support])
	upstream	Released (4.18~rc5)
	xenial	Does not exist
linux-lts-vivid Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was ignored [out of standard support])
	upstream	Released (4.18~rc5)
	xenial	Does not exist
linux-lts-wily Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was ignored [out of standard support])
	upstream	Released (4.18~rc5)
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Released (4.4.0-137.163~14.04.1)
	upstream	Released (4.18~rc5)
	xenial	Does not exist
linux-maguro Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.18~rc5)
	xenial	Does not exist
linux-mako Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.18~rc5)
	xenial	Ignored (abandoned)
linux-manta Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.18~rc5)
	xenial	Does not exist
linux-oem Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1030.35)
	cosmic	Released (4.15.0-1030.35)
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Ignored (was needed now end-of-life)
linux-oracle Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1007.9)
	cosmic	Not vulnerable
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Not vulnerable (4.15.0-1007.9~16.04.1)
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1030.32)
	cosmic	Not vulnerable (4.18.0-1004.6)
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Released (4.4.0-1098.106)
linux-snapdragon Launchpad, Ubuntu, Debian	bionic	Not vulnerable
	cosmic	Does not exist
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.18~rc5)
	xenial	Released (4.4.0-1102.107)

Severity score breakdown

Parameter	Value
Base score	7.8
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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