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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.

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.

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 425aa0e1d01513437668fa3d4a971168bbaa8515
linux-aws
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)
linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)
linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)
linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(end of standard support)
linux-euclid
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(end of life, was needs-triage)
linux-flo
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(abandoned)
linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)
linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

linux-gke
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support, was needs-triage)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(end of life)
linux-goldfish
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(end of life)
linux-grouper
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)
linux-kvm
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc3)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(abandoned)
linux-manta
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(end of life, was needs-triage)
linux-oracle
Launchpad, Ubuntu, Debian
bionic Ignored
(NULL pointer derefence is not possible)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)
linux-raspi2
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)
linux-snapdragon
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support)
cosmic Does not exist

disco Ignored
(end of life)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(NULL pointer derefence is not possible)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H