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CVE-2020-14381

Published: 03 December 2020

A flaw was found in the Linux kernel’s futex implementation. This flaw allows a local attacker to corrupt system memory or escalate their privileges when creating a futex on a filesystem that is about to be unmounted. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-24.28)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-99.100)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-179.209)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 8019ad13ef7f64be44d4f892af9c840179009254
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1008.8)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1066.70)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1107.118)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
linux-aws-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-1018.18~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1066.70~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1009.9)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1082.92~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
linux-azure-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1082.92)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-1020.20~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1008.8)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1061.65)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1071.81)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-1019.19~18.04.2)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1058.61)
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 (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.0.0-1037.38)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1020.22~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-53.47~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-99.100~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-37.41~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1007.7)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1059.60)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1071.78)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

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-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1080.90)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.6.0-1007.7)
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-oem-osp1
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.0.0-1052.57)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1008.8)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1038.42)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1038.42~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(was needs-triage now end-of-life)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-1019.19~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-1008.8)
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-raspi-5.4
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.4.0-1013.13~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Ignored
(was needs-triage now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1061.65)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1133.142)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.3.0-1026.28~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.4.0-24.28)
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-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (5.6~rc6)
Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1077.84)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1137.145)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist