CVE-2017-17741

Published: 18 December 2017

The KVM implementation in the Linux kernel through 4.14.7 allows attackers to obtain potentially sensitive information from kernel memory, aka a write_mmio stack-based out-of-bounds read, related to arch/x86/kvm/x86.c and include/trace/events/kvm.h.

From the Ubuntu Security Team

Dmitry Vyukov discovered that the KVM implementation in the Linux kernel contained an out-of-bounds read when handling memory-mapped I/O. A local attacker could use this to expose sensitive information.

Priority

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-10.11)
	upstream	Released (4.15~rc5)
	artful	Released (4.13.0-38.43)
	trusty	Released (3.13.0-144.193)
	xenial	Released (4.4.0-119.143)
	zesty	Ignored (end of life)
	Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by e39d200fa5bf5b94a0948db0dae44c1b73b84a56
linux-linaro-omap Launchpad, Ubuntu, Debian	upstream	Released (4.15~rc5)
	bionic	Does not exist
	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
linux-ti-omap4 Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
linux-armadaxp Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	This package is not directly supported by the Ubuntu Security Team
linux-linaro-shared Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
linux-linaro-vexpress Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
linux-lts-quantal Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	This package is not directly supported by the Ubuntu Security Team
linux-lts-raring Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
linux-lts-saucy Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty Launchpad, Ubuntu, Debian	bionic	Does not exist
	artful	Does not exist
	trusty	Does not exist
	upstream	Released (4.15~rc5)
	xenial	Does not exist
	zesty	Does not exist
linux-aws Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1001.1)
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Released (4.4.0-1016.16)
	xenial	Released (4.4.0-1054.63)
	zesty	Does not exist
linux-azure Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1002.2)
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Not vulnerable (4.15.0-1023.24~14.04.1)
	xenial	Released (4.13.0-1014.17)
	zesty	Does not exist
linux-euclid Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	trusty	Does not exist
	artful	Does not exist
	xenial	Ignored (was needed ESM criteria)
	zesty	Does not exist
linux-flo Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Ignored (abandoned)
	zesty	Does not exist
linux-gcp Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1001.1)
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.13.0-1012.16)
	zesty	Does not exist
linux-gke Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist
	xenial	Ignored (end of standard support, was needed)
	zesty	Does not exist
linux-goldfish Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Ignored (end of life, was needed)
	zesty	Ignored (end of life)
linux-grouper Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Does not exist
	zesty	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	bionic	Not vulnerable
	upstream	Released (4.15~rc5)
	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.13.0-38.43~16.04.1)
	zesty	Does not exist
linux-kvm Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1002.2)
	artful	Does not exist
	trusty	Does not exist
	upstream	Released (4.15~rc5)
	xenial	Released (4.4.0-1020.25)
	zesty	Does not exist
linux-lts-utopic Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist (trusty was ignored [end of standard support])
	upstream	Released (4.15~rc5)
	xenial	Does not exist
	zesty	Does not exist
linux-hwe-edge Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Released (4.18.0-8.9~18.04.1)
	trusty	Does not exist
	upstream	Released (4.15~rc5)
	xenial	Released (4.13.0-38.43~16.04.1)
	zesty	Does not exist
linux-lts-vivid Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Ignored (end of life, was needs-triage)
	upstream	Released (4.15~rc5)
	xenial	Does not exist
	zesty	Does not exist
linux-lts-wily Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist (trusty was ignored [end of standard support])
	upstream	Released (4.15~rc5)
	xenial	Does not exist
	zesty	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Released (4.4.0-119.143~14.04.1)
	upstream	Released (4.15~rc5)
	xenial	Does not exist
	zesty	Does not exist
linux-maguro Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.15~rc5)
	xenial	Does not exist
	zesty	Does not exist
linux-mako Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.15~rc5)
	xenial	Ignored (abandoned)
	zesty	Does not exist
linux-manta Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.15~rc5)
	xenial	Does not exist
	zesty	Does not exist
linux-oem Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Not vulnerable (4.15.0-1002.3)
	trusty	Does not exist
	upstream	Released (4.15~rc5)
	xenial	Released (4.13.0-1022.24)
	zesty	Does not exist
linux-qcm-msm Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist
	upstream	Released (4.15~rc5)
	xenial	Does not exist
	zesty	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	artful	Released (4.13.0-1016.17)
	bionic	Not vulnerable (4.15.0-1006.7)
	trusty	Does not exist
	upstream	Released (4.15~rc5)
	xenial	Released (4.4.0-1086.94)
	zesty	Ignored (end of life)
linux-snapdragon Launchpad, Ubuntu, Debian	artful	Released (4.4.0-1088.93)
	bionic	Not vulnerable
	trusty	Does not exist
	upstream	Released (4.15~rc5)
	xenial	Released (4.4.0-1088.93)
	zesty	Ignored (end of life)

Severity score breakdown

Parameter	Value
Base score	6.5
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Changed
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References

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