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CVE-2018-8822

Published: 20 March 2018

Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through 4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.

From the Ubuntu security team

Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
artful
Released (4.13.0-43.48)
bionic Not vulnerable
(4.15.0-15.16)
precise Ignored
(was needs-triage ESM criteria)
trusty
Released (3.13.0-149.199)
upstream
Released (4.16~rc7)
xenial
Released (4.4.0-127.153)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 4c41aa24baa4ed338241d05494f2c595c885af8f
linux-aws
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1003.3)
precise Does not exist

trusty
Released (4.4.0-1022.22)
upstream
Released (4.16~rc7)
xenial
Released (4.4.0-1060.69)
linux-azure
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1004.4)
precise Does not exist

trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
upstream
Released (4.16~rc7)
xenial
Released (4.13.0-1018.21)
linux-euclid
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.16~rc7)
xenial Ignored
(was needs-triage ESM criteria)
linux-flo
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.16~rc7)
xenial Ignored
(abandoned)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1003.3)
precise Does not exist

trusty Does not exist

upstream
Released (4.16~rc7)
xenial
Released (4.13.0-1017.21)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.16~rc7)
xenial Ignored
(was needed now end-of-life)
linux-goldfish
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.16~rc7)
xenial Ignored
(was needed now end-of-life)
linux-grouper
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.16~rc7)
xenial Does not exist

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

bionic Not vulnerable

precise Does not exist

trusty Does not exist

upstream
Released (4.16~rc7)
xenial
Released (4.13.0-43.48~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

bionic
Released (4.18.0-8.9~18.04.1)
precise Does not exist

trusty Does not exist

upstream
Released (4.16~rc7)
xenial
Released (4.13.0-43.48~16.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1004.4)
precise Does not exist

trusty Does not exist

upstream
Released (4.16~rc7)
xenial
Released (4.4.0-1026.31)
linux-lts-trusty
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

precise
Released (3.13.0-149.199~precise1)
trusty Does not exist

upstream
Released (4.16~rc7)
xenial Does not exist

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

bionic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [out of standard support])
upstream
Released (4.16~rc7)
xenial Does not exist

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

bionic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [was needs-triage now end-of-life])
upstream
Released (4.16~rc7)
xenial Does not exist

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

bionic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [out of standard support])
upstream
Released (4.16~rc7)
xenial Does not exist

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

bionic Does not exist

precise Does not exist

trusty
Released (4.4.0-127.153~14.04.1)
upstream
Released (4.16~rc7)
xenial Does not exist

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

bionic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.16~rc7)
xenial Does not exist

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

bionic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.16~rc7)
xenial Ignored
(abandoned)
linux-manta
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.16~rc7)
xenial Does not exist

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

bionic Not vulnerable
(4.15.0-1002.3)
precise Does not exist

trusty Does not exist

upstream
Released (4.16~rc7)
xenial
Released (4.13.0-1028.31)
linux-raspi2
Launchpad, Ubuntu, Debian
artful
Released (4.13.0-1020.21)
bionic Not vulnerable
(4.15.0-1006.7)
precise Does not exist

trusty Does not exist

upstream
Released (4.16~rc7)
xenial
Released (4.4.0-1090.98)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful
Released (4.4.0-1093.98)
bionic Not vulnerable

precise Does not exist

trusty Does not exist

upstream
Released (4.16~rc7)
xenial
Released (4.4.0-1093.98)