CVE-2017-14156

Published: 5 September 2017

The atyfb_ioctl function in drivers/video/fbdev/aty/atyfb_base.c in the Linux kernel through 4.12.10 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory by reading locations associated with padding bytes.

From the Ubuntu Security Team

It was discovered that the ATI Radeon framebuffer driver in the Linux kernel did not properly initialize a data structure returned to user space. A local attacker could use this to expose sensitive information (kernel memory).

Priority

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	artful	Released (4.13.0-17.20)
	trusty	Released (3.13.0-142.191)
	xenial	Released (4.4.0-98.121)
	zesty	Ignored (end of life, was pending)
	bionic	Not vulnerable (4.13.0-17.20)
	upstream	Released (4.14~rc1)
	Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by 8e75f7a7a00461ef6d91797a60b606367f6e344d
linux-armadaxp Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
	This package is not directly supported by the Ubuntu Security Team
linux-aws Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Not vulnerable (4.4.0-1002.2)
	xenial	Released (4.4.0-1039.48)
	zesty	Does not exist
	bionic	Not vulnerable (4.15.0-1001.1)
	upstream	Released (4.14~rc1)
linux-azure Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Not vulnerable (4.15.0-1023.24~14.04.1)
	xenial	Released (4.13.0-1005.7)
	zesty	Does not exist
	bionic	Not vulnerable (4.15.0-1002.2)
	upstream	Released (4.14~rc1)
linux-euclid Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Ignored (was needed ESM criteria)
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-flo Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Ignored (abandoned)
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-gcp Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.13.0-1002.5)
	zesty	Does not exist
	bionic	Not vulnerable (4.15.0-1001.1)
	upstream	Released (4.14~rc1)
linux-gke Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.4.0-1033.33)
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-goldfish Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Ignored (end of life, was needed)
	zesty	Ignored (end of life)
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-grouper Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-hwe Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.13.0-26.29~16.04.2)
	zesty	Does not exist
	bionic	Not vulnerable
	upstream	Released (4.14~rc1)
linux-hwe-edge Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.13.0-26.29~16.04.2)
	zesty	Does not exist
	bionic	Released (4.18.0-8.9~18.04.1)
	upstream	Released (4.14~rc1)
linux-kvm Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.4.0-1009.14)
	zesty	Does not exist
	bionic	Not vulnerable (4.15.0-1002.2)
	upstream	Released (4.14~rc1)
linux-linaro-omap Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-linaro-shared Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-linaro-vexpress Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-lts-quantal Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
	This package is not directly supported by the Ubuntu Security Team
linux-lts-raring Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-lts-saucy Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
	This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	upstream	Released (4.14~rc1)
	bionic	Does not exist
linux-lts-utopic Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist (trusty was ignored [end of standard support])
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-lts-vivid Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Ignored (end of life, was needs-triage)
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-lts-wily Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist (trusty was ignored [end of standard support])
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-lts-xenial Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Released (4.4.0-98.121~14.04.1)
	xenial	Does not exist
	zesty	Does not exist
	upstream	Released (4.14~rc1)
	bionic	Does not exist
linux-maguro Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-mako Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Ignored (abandoned)
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-manta Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-oem Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Not vulnerable (4.13.0-1008.9)
	zesty	Does not exist
	bionic	Not vulnerable (4.15.0-1002.3)
	upstream	Released (4.14~rc1)
linux-qcm-msm Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)
linux-raspi2 Launchpad, Ubuntu, Debian	artful	Released (4.13.0-1006.6)
	trusty	Does not exist
	xenial	Released (4.4.0-1076.84)
	zesty	Ignored (end of life, was pending)
	bionic	Not vulnerable (4.13.0-1006.6)
	upstream	Released (4.14~rc1)
linux-snapdragon Launchpad, Ubuntu, Debian	artful	Released (4.4.0-1078.83)
	trusty	Does not exist
	xenial	Released (4.4.0-1078.83)
	zesty	Released (4.4.0-1078.83)
	bionic	Not vulnerable
	upstream	Released (4.14~rc1)
linux-ti-omap4 Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.14~rc1)

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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