CVE-2019-12381

Published: 28 May 2019

** DISPUTED ** An issue was discovered in ip_ra_control in net/ipv4/ip_sockglue.c in the Linux kernel through 5.1.5. There is an unchecked kmalloc of new_ra, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: this is disputed because new_ra is never used if it is NULL.

Priority

Low

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 425aa0e1d01513437668fa3d4a971168bbaa8515
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
linux-aws-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(abandoned)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needs-triage ESM criteria)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(abandoned)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (5.2~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Ignored
(NULL pointer derefence is not possible)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(NULL pointer derefence is not possible)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Notes

AuthorNote
tyhicks
This CVE is disputed due to a lack of security impact. I've reviewed
all of our current kernels and have verified that none of them attempt to
dereference a NULL new_ra pointer.

References