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CVE-2016-5340

Published: 7 August 2016

The is_ashmem_file function in drivers/staging/android/ashmem.c in a certain Qualcomm Innovation Center (QuIC) Android patch for the Linux kernel 3.x mishandles pointer validation within the KGSL Linux Graphics Module, which allows attackers to bypass intended access restrictions by using the /ashmem string as the dentry name.

Notes

AuthorNote
jdstrand
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support
sbeattie
strcmp /ashmem code was never in upstream kernels, marking
not-affected

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
artful Not vulnerable
(Android only)
precise Not vulnerable
(Android only)
trusty Not vulnerable
(Android only)
upstream Not vulnerable
(Android only)
xenial Not vulnerable
(Android only)
yakkety Not vulnerable
(Android only)
zesty Not vulnerable
(Android only)
linux-armadaxp
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

artful Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Not vulnerable
(Android kernel only)
xenial Not vulnerable

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
xenial Not vulnerable

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

trusty Does not exist

xenial Not vulnerable

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Ignored
(abandoned)
yakkety Ignored
(end of life)
zesty Does not exist

upstream Needs triage

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

trusty Does not exist

xenial Not vulnerable

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist

xenial Not vulnerable

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Ignored
(abandoned)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
upstream Needs triage

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

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist

xenial Not vulnerable

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist

xenial Not vulnerable

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

trusty Does not exist

xenial Not vulnerable

zesty Does not exist

upstream Needs triage

linux-linaro-omap
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

upstream Needs triage

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
artful Does not exist

precise Not vulnerable
(Android kernel only)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist
(trusty was not-affected [Android kernel only])
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist
(trusty was not-affected [Android kernel only])
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist
(trusty was not-affected [Android kernel only])
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Not vulnerable
(Android kernel only)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Ignored
(abandoned)
yakkety Ignored
(end of life)
zesty Does not exist

upstream Needs triage

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

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

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

trusty Does not exist

xenial Not vulnerable

zesty Does not exist

upstream Needs triage

linux-qcm-msm
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream Needs triage

linux-raspi2
Launchpad, Ubuntu, Debian
artful Not vulnerable
(Android only)
precise Does not exist

trusty Does not exist

xenial Not vulnerable
(Android only)
yakkety Ignored
(end of life)
zesty Not vulnerable
(Android only)
upstream Needs triage

linux-snapdragon
Launchpad, Ubuntu, Debian
artful Not vulnerable
(Android only)
precise Does not exist

trusty Does not exist

xenial Not vulnerable
(Android only)
yakkety Ignored
(end of life)
zesty Not vulnerable
(Android only)
upstream Needs triage

linux-ti-omap4
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

upstream Needs triage

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H