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CVE-2018-6555

Published: 4 September 2018

The irda_setsockopt function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c in the Linux kernel before 4.17 allows local users to cause a denial of service (ias_object use-after-free and system crash) or possibly have unspecified other impact via an AF_IRDA socket.

From the Ubuntu Security Team

It was discovered that a use-after-free vulnerability existed in the IRDA implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Notes

AuthorNote
tyhicks
The irda subsystem was removed in 4.17

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
linux-aws
Launchpad, Ubuntu, Debian
artful Does not exist

bionic
Released (4.15.0-1023.23)
cosmic Not vulnerable
(4.18.0-1002.3)
trusty
Released (4.4.0-1031.34)
upstream
Released (4.17~rc3)
xenial
Released (4.4.0-1069.79)
linux-azure
Launchpad, Ubuntu, Debian
artful Does not exist

bionic
Released (4.15.0-1025.26)
cosmic Not vulnerable
(4.18.0-1003.3)
trusty
Released (4.15.0-1030.31~14.04.1)
upstream
Released (4.17~rc3)
xenial
Released (4.15.0-1025.26~16.04.1)
linux-euclid
Launchpad, Ubuntu, Debian
trusty Does not exist

artful Does not exist

bionic Does not exist

cosmic Does not exist

xenial Ignored
(was needed ESM criteria)
upstream
Released (4.17~rc3)
linux-oem
Launchpad, Ubuntu, Debian
artful Does not exist

bionic
Released (4.15.0-1021.24)
cosmic Not vulnerable
(4.15.0-1021.24)
trusty Does not exist

upstream
Released (4.17~rc3)
xenial Ignored
(end of standard support, was needed)
linux
Launchpad, Ubuntu, Debian
artful Ignored
(end of life, was needed)
bionic
Released (4.15.0-36.39)
cosmic Not vulnerable
(4.17.0-6.7)
trusty
Released (3.13.0-160.210)
upstream
Released (4.17~rc3)
xenial
Released (4.4.0-137.163)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by local-2018-6555-1|edf5c17d866eada03b8750368a12dc3def77d608
linux-azure-edge
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.18.0-1004.4~18.04.1)
cosmic Does not exist

trusty Does not exist

upstream
Released (4.17~rc3)
xenial
Released (4.15.0-1025.26)
linux-flo
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.17~rc3)
xenial Ignored
(abandoned)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

bionic
Released (4.15.0-1021.22)
cosmic Not vulnerable
(4.18.0-1002.3)
trusty Does not exist

upstream
Released (4.17~rc3)
xenial
Released (4.15.0-1021.22~16.04.1)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

trusty Does not exist

upstream
Released (4.17~rc3)
xenial Ignored
(end of standard support)
linux-goldfish
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.17~rc3)
xenial Ignored
(end of life)
linux-grouper
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.17~rc3)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable

cosmic Does not exist

trusty Does not exist

upstream
Released (4.17~rc3)
xenial
Released (4.15.0-36.39~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.18.0-11.12~18.04.1)
cosmic Does not exist

trusty Does not exist

upstream
Released (4.17~rc3)
xenial
Released (4.15.0-36.39~16.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

bionic
Released (4.15.0-1023.23)
cosmic Not vulnerable
(4.18.0-1002.2)
trusty Does not exist

upstream
Released (4.17~rc3)
xenial
Released (4.4.0-1035.41)
linux-lts-trusty
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

trusty Does not exist

upstream
Released (4.17~rc3)
xenial Does not exist

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

bionic Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
upstream
Released (4.17~rc3)
xenial Does not exist

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

bionic Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
upstream
Released (4.17~rc3)
xenial Does not exist

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

bionic Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
upstream
Released (4.17~rc3)
xenial Does not exist

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

bionic Does not exist

cosmic Does not exist

trusty
Released (4.4.0-137.163~14.04.1)
upstream
Released (4.17~rc3)
xenial Does not exist

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

bionic Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.17~rc3)
xenial Does not exist

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

bionic Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.17~rc3)
xenial Ignored
(abandoned)
linux-manta
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.17~rc3)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
artful Ignored
(end of life, was needs-triage)
bionic
Released (4.15.0-1024.26)
cosmic Not vulnerable
(4.18.0-1004.6)
trusty Does not exist

upstream
Released (4.17~rc3)
xenial
Released (4.4.0-1098.106)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful Ignored
(end of life, was needs-triage)
bionic Not vulnerable

cosmic Does not exist

trusty Does not exist

upstream
Released (4.17~rc3)
xenial
Released (4.4.0-1102.107)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H