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CVE-2016-2085

Published: 15 February 2016

The evm_verify_hmac function in security/integrity/evm/evm_main.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack.

From the Ubuntu security team

Xiaofei Rex Guo discovered a timing side channel vulnerability in the Linux Extended Verification Module (EVM). An attacker could use this to affect system integrity.

Priority

Low

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty
Released (3.13.0-85.129)
upstream
Released (4.5~rc4)
vivid
Released (3.19.0-58.64)
wily
Released (4.2.0-35.40)
xenial Not vulnerable
(4.4.0-7.22)
yakkety Not vulnerable
(4.4.0-21.37)
zesty Not vulnerable
(4.8.0-22.24)
linux-armadaxp
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was not-affected)
trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-aws
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
upstream
Released (4.5~rc4)
xenial Not vulnerable
(4.4.0-1001.10)
yakkety Does not exist

zesty Does not exist

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

trusty Does not exist
(trusty was ignored)
upstream
Released (4.5~rc4)
vivid Ignored
(abandoned)
wily Ignored
(reached end-of-life)
xenial Ignored
(abandoned)
yakkety Ignored
(abandoned)
zesty Does not exist

linux-fsl-imx51
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Does not exist

upstream
Released (4.5~rc4)
xenial Not vulnerable
(4.4.0-1003.3)
yakkety Does not exist

zesty Does not exist

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

trusty Does not exist
(trusty was ignored)
upstream
Released (4.5~rc4)
vivid Ignored
(abandoned)
wily Ignored
(reached end-of-life)
xenial Ignored
(abandoned)
yakkety Ignored
(abandoned)
zesty Ignored
(abandoned)
linux-grouper
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Does not exist

upstream
Released (4.5~rc4)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

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

trusty Does not exist

upstream
Released (4.5~rc4)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

linux-linaro-omap
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [abandoned])
trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [abandoned])
trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [abandoned])
trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [end-of-life])
trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-raring
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [end-of-life])
trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [end-of-life])
trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
precise
Released (3.13.0-85.129~precise1)
trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Does not exist
(trusty was released [3.16.0-69.89~14.04.1])
upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Does not exist
(trusty was released [3.19.0-58.64~14.04.1])
upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Does not exist
(trusty was released [4.2.0-35.40~14.04.1])
upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Not vulnerable
(4.4.0-13.29~14.04.1)
upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Does not exist
(trusty was ignored)
upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Does not exist
(trusty was ignored)
upstream
Released (4.5~rc4)
vivid Ignored
(abandoned)
wily Ignored
(reached end-of-life)
xenial Ignored
(abandoned)
yakkety Ignored
(abandoned)
zesty Does not exist

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

trusty Does not exist
(trusty was ignored)
upstream
Released (4.5~rc4)
vivid Ignored
(abandoned)
wily Ignored
(reached end-of-life)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-qcm-msm
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [abandoned])
trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily
Released (4.2.0-1028.36)
xenial Not vulnerable
(4.4.0-1003.4)
yakkety Not vulnerable
(4.4.0-1009.10)
zesty Not vulnerable
(4.8.0-1013.15)
linux-snapdragon
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.5~rc4)
wily Does not exist

xenial Not vulnerable
(4.4.0-1012.12)
yakkety Not vulnerable
(4.4.0-1012.12)
zesty Not vulnerable
(4.4.0-1029.32)
linux-ti-omap4
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was not-affected)
trusty Does not exist

upstream
Released (4.5~rc4)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist