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CVE-2019-12382

Published: 28 May 2019

** DISPUTED ** An issue was discovered in drm_load_edid_firmware in drivers/gpu/drm/drm_edid_load.c in the Linux kernel through 5.1.5. There is an unchecked kstrdup of fwstr, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: The vendor disputes this issues as not being a vulnerability because kstrdup() returning NULL is handled sufficiently and there is no chance for a NULL pointer dereference.

Notes

AuthorNote
tyhicks
There's no security impact here as there's no chance of a NULL
pointer derefence. I've requested that MITRE reject this CVE.
I've reviewed our Disco, Cosmic, Bionic, and Xenial kernels. There's
no security impact here so we'll ignore this issue.

Priority

Negligible

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 Ignored
(NULL pointer derefence is not possible)
xenial Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
xenial Does not exist

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

disco Does not exist

trusty Does not exist

upstream Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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 Ignored
(NULL pointer derefence is not possible)
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