CVE-2018-5750

Published: 26 January 2018

The acpi_smbus_hc_add function in drivers/acpi/sbshc.c in the Linux kernel through 4.14.15 allows local users to obtain sensitive address information by reading dmesg data from an SBS HC printk call.

From the Ubuntu Security Team

Wang Qize discovered that an information disclosure vulnerability existed in the SMBus driver for ACPI Embedded Controllers in the Linux kernel. A local attacker could use this to expose sensitive information (kernel pointer addresses).

Priority

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Not vulnerable (4.15.0-12.13)
	artful	Released (4.13.0-46.51)
	trusty	Released (3.13.0-153.203)
	xenial	Released (4.4.0-121.145)
	Patches: Introduced by 91087dfa51a29b3c190e99339c4c32eb13646c51 Fixed by 43cdd1b716b26f6af16da4e145b6578f98798bf6
linux-armadaxp Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Does not exist
	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	This package is not directly supported by the Ubuntu Security Team
linux-goldfish Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Does not exist
	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Ignored (end of life, was needed)
linux-grouper Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Does not exist
	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Does not exist
linux-flo Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Does not exist
	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Ignored (abandoned)
linux-aws Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Not vulnerable (4.15.0-1003.3)
	artful	Does not exist
	trusty	Released (4.4.0-1017.17)
	xenial	Released (4.4.0-1055.64)
linux-hwe Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Not vulnerable
	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.15.0-24.26~16.04.1)
linux-hwe-edge Launchpad, Ubuntu, Debian	bionic	Released (4.18.0-8.9~18.04.1)
	artful	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.15.0-24.26~16.04.1)
linux-gke Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Does not exist
	artful	Does not exist
	trusty	Does not exist
	xenial	Ignored (end of standard support, was needed)
linux-azure Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Not vulnerable (4.15.0-1003.3)
	artful	Does not exist
	trusty	Not vulnerable (4.15.0-1023.24~14.04.1)
	xenial	Released (4.15.0-1013.13~16.04.2)
linux-gcp Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Not vulnerable (4.15.0-1003.3)
	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.15.0-1014.14~16.04.1)
linux-kvm Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Not vulnerable (4.15.0-1002.2)
	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.4.0-1021.26)
linux-euclid Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Does not exist
	artful	Does not exist
	trusty	Does not exist
	xenial	Ignored (was needs-triage ESM criteria)
linux-oem Launchpad, Ubuntu, Debian	upstream	Released (4.16~rc1)
	bionic	Not vulnerable (4.15.0-1002.3)
	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.13.0-1031.35)
linux-linaro-omap Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-linaro-shared Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-linaro-vexpress Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-lts-quantal Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist
	This package is not directly supported by the Ubuntu Security Team
linux-lts-raring Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-lts-saucy Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist
	This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	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 (4.16~rc1)
	xenial	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 (4.16~rc1)
	xenial	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 (4.16~rc1)
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Released (4.4.0-121.145~14.04.1)
	upstream	Released (4.16~rc1)
	xenial	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 (4.16~rc1)
	xenial	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 (4.16~rc1)
	xenial	Ignored (abandoned)
linux-manta Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-qcm-msm Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	artful	Released (4.13.0-1023.24)
	bionic	Not vulnerable (4.15.0-1006.7)
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.4.0-1087.95)
linux-snapdragon Launchpad, Ubuntu, Debian	artful	Released (4.4.0-1090.95)
	bionic	Not vulnerable
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.4.0-1090.95)
linux-ti-omap4 Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist

Severity score breakdown

Parameter	Value
Base score	5.5
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

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