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CVE-2019-16746

Published: 24 September 2019

An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not check the length of variable elements in a beacon head, leading to a buffer overflow.

From the Ubuntu security team

It was discovered that a buffer overflow existed in the 802.11 Wi-Fi configuration interface for the Linux kernel when handling beacon settings. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 9.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-72.81)
disco
Released (5.0.0-37.40)
eoan
Released (5.3.0-22.24)
focal Not vulnerable
(5.4.0-9.12)
precise Ignored
(was needs-triage ESM criteria)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.4~rc2)
xenial
Released (4.4.0-168.197)
Patches:
Introduced by

ed1b6cc7f80f831e192704b05b9917f9cc37be15

Fixed by f88eb7c0d002a67ef31aeb7850b42ff69abc46dc
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1056.58)
disco
Released (5.0.0-1022.25)
eoan
Released (5.3.0-1007.8)
focal Not vulnerable
(5.4.0-1005.5)
precise Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.4~rc2)
xenial
Released (4.4.0-1098.109)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1022.25~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

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

disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.15.0-1056.58~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1027.29~18.04.1)
disco
Released (5.0.0-1027.29)
eoan
Released (5.3.0-1007.8)
focal Not vulnerable
(5.4.0-1006.6)
precise Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.4~rc2)
xenial
Released (4.15.0-1064.69)
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

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(was needed now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Ignored
(was needed now end-of-life)
linux-gcp
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1026.27~18.04.1)
disco
Released (5.0.0-1026.27)
eoan
Released (5.3.0-1008.9)
focal Not vulnerable
(5.4.0-1005.5)
precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.15.0-1050.53)
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

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(was needed now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1049.52)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1026.27~18.04.2)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1011.12~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-37.40~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.15.0-72.81~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(was pending \[5.3.0-22.24~18.04.1\] now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Ignored
(was pending \[4.15.0-71.80~16.04.1\] now end-of-life)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1051.51)
disco
Released (5.0.0-1023.25)
eoan
Released (5.3.0-1007.8)
focal Not vulnerable
(5.4.0-1004.4)
precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.4.0-1062.69)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

precise Ignored
(was needs-triage ESM criteria)
trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

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

disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.4~rc2)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1065.75)
disco Ignored
(reached end-of-life)
eoan
Released (4.15.0-1065.75)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Ignored
(was needs-triage now end-of-life)
linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Not vulnerable
(5.4.0-1002.4)
precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1030.34)
disco Ignored
(reached end-of-life)
eoan
Released (5.0.0-1030.34)
focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1030.33)
disco
Released (5.0.0-1008.13)
eoan
Released (5.3.0-1006.7)
focal Not vulnerable
(5.4.0-1005.5)
precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.15.0-1030.33~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1008.13~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1011.12~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1052.56)
disco
Released (5.0.0-1023.24)
eoan
Released (5.3.0-1012.14)
focal Ignored
(was needed now end-of-life)
precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.4.0-1125.134)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1017.19~18.04.1)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1069.76)
disco Ignored
(was pending \[5.0.0-1027.29\] now end-of-life)
eoan Does not exist

focal Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.4~rc2)
xenial
Released (4.4.0-1129.137)