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CVE-2019-3882

Published: 24 April 2019

A flaw was found in the Linux kernel's vfio interface implementation that permits violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). Versions 3.10, 4.14 and 4.18 are vulnerable.

From the Ubuntu security team

Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA mappings. A local attacker could use this to cause a denial of service (memory exhaustion).

Priority

Low

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-50.54)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-148.174)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needed ESM criteria)
Patches:
Introduced by 73fa0d10d077d9521ee2dace2307ae2c9a965336
Fixed by 492855939bdb59c6f947b0b5b44af9ad82b7e38c
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1039.41)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1083.93)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-1044.47)
linux-aws-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1039.41~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.18.0-1018.18~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1045.49)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.15.0-1045.49~14.04.1)
linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.18.0-1018.18~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1045.49)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needs-triage ESM criteria)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(abandoned)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [abandoned])
linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1032.34)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1032.34~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.18.0-1011.12~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1032.34)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.0.0-1011.11~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [abandoned])
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [abandoned])
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.18.0-20.21~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-50.54~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.0.0-15.16~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-50.54~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1034.34)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1046.52)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [end-of-life])
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [end-of-life])
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [end-of-life])
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-148.174~14.04.1)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [abandoned])
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(abandoned)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [abandoned])
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [abandoned])
linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1038.43)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1013.15)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1013.15~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1036.38)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1109.117)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1053.57)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1113.118)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist