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CVE-2019-14283

Published: 26 July 2019

In the Linux kernel before 5.2.3, set_geometry in drivers/block/floppy.c does not validate the sect and head fields, as demonstrated by an integer overflow and out-of-bounds read. It can be triggered by an unprivileged local user when a floppy disk has been inserted. NOTE: QEMU creates the floppy device by default.

From the Ubuntu Security Team

It was discovered that the floppy driver in the Linux kernel did not properly validate meta data, leading to a buffer overread. A local attacker could use this to cause a denial of service (system crash).

Priority

Medium

Cvss 3 Severity Score

6.8

Score breakdown

Status

Package Release Status
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1047.49)
disco
Released (5.0.0-1014.16)
eoan Not vulnerable
(5.3.0-1003.3)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.3~rc1)
xenial
Released (4.4.0-1092.103)
linux-flo
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Ignored
(abandoned)
linux-aws-5.0
Launchpad, Ubuntu, Debian
trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

bionic Not vulnerable
(5.0.0-1021.24~18.04.1)
disco Does not exist

eoan Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial
Released (4.15.0-1047.49~16.04.1)
linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1007.8~18.04.1)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-60.67)
disco
Released (5.0.0-27.28)
eoan Not vulnerable
(5.2.0-10.11)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.3~rc1)
xenial
Released (4.4.0-161.189)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by da99466ac243f15fbba65bd261bfc75ffa1532b6
linux-azure
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1018.19~18.04.1)
disco
Released (5.0.0-1018.19)
eoan Not vulnerable
(5.0.0-1018.19)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.3~rc1)
xenial
Released (4.15.0-1056.61)
linux-azure-edge
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1018.19~18.04.1)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial
Released (4.15.0-1056.61)
linux-euclid
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Ignored
(end of life, was needs-triage)
linux-gcp
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1042.45)
disco
Released (5.0.0-1015.15)
eoan Not vulnerable
(5.0.0-1015.15)
trusty Does not exist

upstream
Released (5.3~rc1)
xenial
Released (4.15.0-1041.43)
linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1008.9~18.04.1)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1042.45)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-gke
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Ignored
(end of standard support)
linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1041.43)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1015.15~18.04.1)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Ignored
(end of life)
linux-grouper
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-27.28~18.04.1)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial
Released (4.15.0-60.67~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was pending)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial
Released (4.15.0-60.67~16.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1043.43)
disco
Released (5.0.0-1015.16)
eoan Not vulnerable
(5.0.0-1015.16)
trusty Does not exist

upstream
Released (5.3~rc1)
xenial
Released (4.4.0-1056.63)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.3~rc1)
xenial Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-mako
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Ignored
(abandoned)
linux-manta
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1056.65)
disco Ignored
(end of life, was pending)
eoan
Released (4.15.0-1059.68)
trusty Does not exist

upstream
Released (5.3~rc1)
xenial Ignored
(end of standard support, was needs-triage)
linux-oem-5.4
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1020.22)
disco Ignored
(end of life, was pending)
eoan
Released (5.0.0-1022.24)
trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1022.25)
disco
Released (5.0.0-1004.8)
eoan Not vulnerable
(5.3.0-1002.2)
trusty Does not exist

upstream
Released (5.3~rc1)
xenial
Released (4.15.0-1022.25~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1007.12~18.04.1)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1044.47)
disco
Released (5.0.0-1015.15)
eoan Not vulnerable
(5.0.0-1015.15)
trusty Does not exist

upstream
Released (5.3~rc1)
xenial
Released (4.4.0-1120.129)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1017.19~18.04.1)
eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1062.69)
disco
Released (5.0.0-1019.20)
eoan Does not exist

trusty Does not exist

upstream
Released (5.3~rc1)
xenial
Released (4.4.0-1124.130)

Severity score breakdown

Parameter Value
Base score 6.8
Attack vector Physical
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H