CVE-2017-14140

Published: 5 September 2017

The move_pages system call in mm/migrate.c in the Linux kernel before 4.12.9 doesn't check the effective uid of the target process, enabling a local attacker to learn the memory layout of a setuid executable despite ASLR.

From the Ubuntu Security Team

Otto Ebeling discovered that the memory manager in the Linux kernel did not properly check the effective UID in some situations. A local attacker could use this to expose sensitive information.

Priority

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package	Release	Status
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 (4.13~rc6)
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 (4.13~rc6)
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 (4.13~rc6)
linux-gke Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.4.0-1032.32)
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.13~rc6)
linux-goldfish Launchpad, Ubuntu, Debian	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 (4.13~rc6)
	artful	Does not exist
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 (4.13~rc6)
linux-hwe Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Not vulnerable
	upstream	Released (4.13~rc6)
	trusty	Does not exist
	xenial	Released (4.13.0-26.29~16.04.2)
	zesty	Does not exist
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 (4.13~rc6)
linux-kvm Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Released (4.4.0-1008.13)
	zesty	Does not exist
	bionic	Not vulnerable (4.15.0-1002.2)
	upstream	Released (4.13~rc6)
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 (4.13~rc6)
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 (4.13~rc6)
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 (4.13~rc6)
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 (4.13~rc6)
	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 (4.13~rc6)
linux-lts-saucy Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Does not exist
	xenial	Does not exist
	zesty	Does not exist
	upstream	Released (4.13~rc6)
	bionic	Does not exist
	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
	bionic	Does not exist
	upstream	Released (4.13~rc6)
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 (4.13~rc6)
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 (4.13~rc6)
linux-lts-xenial Launchpad, Ubuntu, Debian	artful	Does not exist
	trusty	Released (4.4.0-97.120~14.04.1)
	xenial	Does not exist
	zesty	Does not exist
	upstream	Released (4.13~rc6)
	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 (4.13~rc6)
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 (4.13~rc6)
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 (4.13~rc6)
linux-snapdragon Launchpad, Ubuntu, Debian	artful	Not vulnerable (4.4.0-1077.82)
	trusty	Does not exist
	xenial	Released (4.4.0-1077.82)
	zesty	Released (4.4.0-1077.82)
	bionic	Not vulnerable
	upstream	Released (4.13~rc6)
linux-ti-omap4 Launchpad, Ubuntu, Debian	artful	Does not exist
	zesty	Does not exist
	bionic	Does not exist
	upstream	Released (4.13~rc6)
	trusty	Does not exist
	xenial	Does not exist
linux Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.13.0-16.19)
	upstream	Released (4.13~rc6)
	trusty	Released (3.13.0-142.191)
	artful	Not vulnerable (4.12.0-13.14)
	xenial	Released (4.4.0-97.120)
	zesty	Ignored (end of life, was pending)
	Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by 197e7e521384a23b9e585178f3f11c9fa08274b9
linux-armadaxp Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.13~rc6)
	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-flo Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.13~rc6)
	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Ignored (abandoned)
	zesty	Does not exist
linux-lts-utopic Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.13~rc6)
	artful	Does not exist
	trusty	Does not exist (trusty was ignored [end of standard support])
	xenial	Does not exist
	zesty	Does not exist
linux-mako Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.13~rc6)
	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Ignored (abandoned)
	zesty	Does not exist
linux-manta Launchpad, Ubuntu, Debian	bionic	Does not exist
	upstream	Released (4.13~rc6)
	artful	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	xenial	Does not exist
	zesty	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.13.0-1005.5)
	upstream	Released (4.13~rc6)
	artful	Not vulnerable (4.13.0-1004.4)
	trusty	Does not exist
	xenial	Released (4.4.0-1075.83)
	zesty	Released (4.10.0-1024.27)
linux-aws Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1001.1)
	upstream	Released (4.13~rc6)
	artful	Does not exist
	trusty	Not vulnerable (4.4.0-1002.2)
	xenial	Released (4.4.0-1038.47)
	zesty	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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