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CVE-2019-15292

Published: 21 August 2019

An issue was discovered in the Linux kernel before 5.0.9. There is a use-after-free in atalk_proc_exit, related to net/appletalk/atalk_proc.c, net/appletalk/ddp.c, and net/appletalk/sysctl_net_atalk.c.

From the Ubuntu Security Team

It was discovered that a use-after-free vulnerability existed in the AppleTalk implementation in the Linux kernel if an error occurs during initialization. A local attacker could use this to cause a denial of service (system crash).

Notes

AuthorNote
sbeattie
use-after-free occurs during module unload after proc
initialization failure.
Priority

Low

CVSS 3 base score: 9.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-60.67)
disco
Released (5.0.0-21.22)
eoan Not vulnerable
(5.2.0-8.9)
precise Ignored
(was needs-triage ESM criteria)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.1~rc1)
xenial
Released (4.4.0-150.176)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 6377f787aeb945cae7abbb6474798de129e1f3ac
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1047.49)
disco Ignored
(was pending \[5.0.0-1011.12\] now end-of-life)
eoan Not vulnerable
(5.0.0-1011.12)
precise Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.1~rc1)
xenial
Released (4.4.0-1084.94)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1021.24~18.04.1)
disco Does not exist

eoan Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial Does not exist

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

disco Does not exist

eoan Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial
Released (4.15.0-1047.49~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1014.14~18.04.1)
disco
Released (5.0.0-1012.12)
eoan Not vulnerable
(5.0.0-1012.12)
precise Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.1~rc1)
xenial
Released (4.15.0-1056.61)
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

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1014.14~18.04.1)
disco Does not exist

eoan Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial
Released (4.15.0-1056.61)
linux-gcp
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1042.45)
disco
Released (5.0.0-1011.11)
eoan Not vulnerable
(5.0.0-1011.11)
precise Does not exist

trusty Does not exist

upstream
Released (5.1~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

precise Does not exist

trusty Does not exist

upstream
Released (5.1~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

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1041.43)
disco Does not exist

eoan Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1011.11~18.04.1)
disco Does not exist

eoan Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-23.24~18.04.1)
disco Does not exist

eoan Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial
Released (4.15.0-60.67~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(was pending \[5.3.0-19.20~18.04.2\] now end-of-life)
disco Does not exist

eoan Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.1~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 (5.0.0-1011.12)
eoan Not vulnerable
(5.0.0-1011.12)
precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial
Released (4.4.0-1047.53)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

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

upstream
Released (5.1~rc1)
xenial Does not exist

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

disco Does not exist

eoan Does not exist

precise Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.1~rc1)
xenial Does not exist

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

trusty Does not exist

upstream
Released (5.1~rc1)
xenial Ignored
(was needs-triage now end-of-life)
linux-oem-5.4
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1015.16)
disco Ignored
(was pending \[5.0.0-1015.16\] now end-of-life)
eoan
Released (5.0.0-1018.20)
precise Does not exist

trusty Does not exist

upstream
Released (5.1~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)
precise Does not exist

trusty Does not exist

upstream
Released (5.1~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

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1044.47)
disco Ignored
(was pending \[5.0.0-1013.13\] now end-of-life)
eoan Not vulnerable
(5.0.0-1013.13)
precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial
Released (4.4.0-1110.118)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1017.19~18.04.1)
eoan Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1062.69)
disco
Released (5.0.0-1017.18)
eoan Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (5.1~rc1)
xenial
Released (4.4.0-1114.119)