PublicDateAtUSN: 2016-11-27
Candidate: CVE-2016-9178
PublicDate: 2016-11-28 03:59:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9178
 http://www.openwall.com/lists/oss-security/2016/11/03/2
 https://ubuntu.com/security/notices/USN-3161-3
 https://ubuntu.com/security/notices/USN-3422-1
 https://ubuntu.com/security/notices/USN-3422-2
Description:
 The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux
 kernel before 4.7.5 does not initialize a certain integer variable, which
 allows local users to obtain sensitive information from kernel stack memory
 by triggering failure of a get_user_ex call.
Ubuntu-Description:
 It was discovered that an information leak existed in __get_user_asm_ex()
 in the Linux kernel. A local attacker could use this to expose sensitive
 information.
Notes:
 sbeattie> the fix for this introduces CVE-2016-9644. NOTE: This
   is only an issue if 1c109fabbd51863475cd12ac206bdd249aee35af
   (added in 4.8) is backported without also backporting
   548acf19234dbda5a52d5a8e7e205af46e9da840 (added
   in 4.6). However, the first attempt at backporting
   548acf19234dbda5a52d5a8e7e205af46e9da840 was pulled shortly
   thereafter.
 sbeattie> The git commit for xenial is
   1f4da631f0159d77908edb10f15e84642980cf16.
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N [5.5 MEDIUM]

Patches_linux:
 break-fix: - 1c109fabbd51863475cd12ac206bdd249aee35af
upstream_linux: released (4.8~rc7)
precise_linux: ignored (reached end-of-life)
precise/esm_linux: ignored (was needed ESM criteria)
trusty_linux: released (3.13.0-132.181)
trusty/esm_linux: released (3.13.0-132.181)
vivid/ubuntu-core_linux: ignored (was needed ESM criteria)
vivid/stable-phone-overlay_linux: DNE
xenial_linux: released (4.4.0-47.68)
esm-infra/xenial_linux: released (4.4.0-47.68)
yakkety_linux: not-affected (4.8.0-14.15)
zesty_linux: not-affected (4.8.0-22.24)
artful_linux: not-affected (4.10.0-19.21)
devel_linux: not-affected (4.13.0-16.19)

Patches_linux-ti-omap4:
upstream_linux-ti-omap4: released (4.8~rc7)
precise_linux-ti-omap4: ignored (reached end-of-life)
precise/esm_linux-ti-omap4: DNE (precise was needed)
trusty_linux-ti-omap4: DNE
trusty/esm_linux-ti-omap4: DNE
vivid/ubuntu-core_linux-ti-omap4: DNE
vivid/stable-phone-overlay_linux-ti-omap4: DNE
xenial_linux-ti-omap4: DNE
yakkety_linux-ti-omap4: DNE
zesty_linux-ti-omap4: DNE
artful_linux-ti-omap4: DNE
devel_linux-ti-omap4: DNE

Patches_linux-linaro-omap:
upstream_linux-linaro-omap: released (4.8~rc7)
precise_linux-linaro-omap: ignored (abandoned)
precise/esm_linux-linaro-omap: DNE (precise was ignored [abandoned])
trusty_linux-linaro-omap: DNE
trusty/esm_linux-linaro-omap: DNE
vivid/ubuntu-core_linux-linaro-omap: DNE
vivid/stable-phone-overlay_linux-linaro-omap: DNE
xenial_linux-linaro-omap: DNE
yakkety_linux-linaro-omap: DNE
zesty_linux-linaro-omap: DNE
artful_linux-linaro-omap: DNE
devel_linux-linaro-omap: DNE

Patches_linux-linaro-shared:
upstream_linux-linaro-shared: released (4.8~rc7)
precise_linux-linaro-shared: ignored (abandoned)
precise/esm_linux-linaro-shared: DNE (precise was ignored [abandoned])
trusty_linux-linaro-shared: DNE
trusty/esm_linux-linaro-shared: DNE
vivid/ubuntu-core_linux-linaro-shared: DNE
vivid/stable-phone-overlay_linux-linaro-shared: DNE
xenial_linux-linaro-shared: DNE
yakkety_linux-linaro-shared: DNE
zesty_linux-linaro-shared: DNE
artful_linux-linaro-shared: DNE
devel_linux-linaro-shared: DNE

Patches_linux-linaro-vexpress:
upstream_linux-linaro-vexpress: released (4.8~rc7)
precise_linux-linaro-vexpress: ignored (abandoned)
precise/esm_linux-linaro-vexpress: DNE (precise was ignored [abandoned])
trusty_linux-linaro-vexpress: DNE
trusty/esm_linux-linaro-vexpress: DNE
vivid/ubuntu-core_linux-linaro-vexpress: DNE
vivid/stable-phone-overlay_linux-linaro-vexpress: DNE
xenial_linux-linaro-vexpress: DNE
yakkety_linux-linaro-vexpress: DNE
zesty_linux-linaro-vexpress: DNE
artful_linux-linaro-vexpress: DNE
devel_linux-linaro-vexpress: DNE

Patches_linux-qcm-msm:
upstream_linux-qcm-msm: released (4.8~rc7)
precise_linux-qcm-msm: ignored (abandoned)
precise/esm_linux-qcm-msm: DNE (precise was ignored [abandoned])
trusty_linux-qcm-msm: DNE
trusty/esm_linux-qcm-msm: DNE
vivid/ubuntu-core_linux-qcm-msm: DNE
vivid/stable-phone-overlay_linux-qcm-msm: DNE
xenial_linux-qcm-msm: DNE
yakkety_linux-qcm-msm: DNE
zesty_linux-qcm-msm: DNE
artful_linux-qcm-msm: DNE
devel_linux-qcm-msm: DNE

Tags_linux-armadaxp: not-ue
Patches_linux-armadaxp:
upstream_linux-armadaxp: released (4.8~rc7)
precise_linux-armadaxp: ignored (reached end-of-life)
precise/esm_linux-armadaxp: DNE (precise was needed)
trusty_linux-armadaxp: DNE
trusty/esm_linux-armadaxp: DNE
vivid/ubuntu-core_linux-armadaxp: DNE
vivid/stable-phone-overlay_linux-armadaxp: DNE
xenial_linux-armadaxp: DNE
yakkety_linux-armadaxp: DNE
zesty_linux-armadaxp: DNE
artful_linux-armadaxp: DNE
devel_linux-armadaxp: DNE

Tags_linux-lts-quantal: not-ue
Patches_linux-lts-quantal:
upstream_linux-lts-quantal: released (4.8~rc7)
precise_linux-lts-quantal: ignored (end-of-life)
precise/esm_linux-lts-quantal: DNE (precise was ignored [end-of-life])
trusty_linux-lts-quantal: DNE
trusty/esm_linux-lts-quantal: DNE
vivid/ubuntu-core_linux-lts-quantal: DNE
vivid/stable-phone-overlay_linux-lts-quantal: DNE
xenial_linux-lts-quantal: DNE
yakkety_linux-lts-quantal: DNE
zesty_linux-lts-quantal: DNE
artful_linux-lts-quantal: DNE
devel_linux-lts-quantal: DNE

Patches_linux-lts-raring:
upstream_linux-lts-raring: released (4.8~rc7)
precise_linux-lts-raring: ignored (end-of-life)
precise/esm_linux-lts-raring: DNE (precise was ignored [end-of-life])
trusty_linux-lts-raring: DNE
trusty/esm_linux-lts-raring: DNE
vivid/ubuntu-core_linux-lts-raring: DNE
vivid/stable-phone-overlay_linux-lts-raring: DNE
xenial_linux-lts-raring: DNE
yakkety_linux-lts-raring: DNE
zesty_linux-lts-raring: DNE
artful_linux-lts-raring: DNE
devel_linux-lts-raring: DNE

Tags_linux-lts-saucy: not-ue
Patches_linux-lts-saucy:
upstream_linux-lts-saucy: released (4.8~rc7)
precise_linux-lts-saucy: ignored (end-of-life)
precise/esm_linux-lts-saucy: DNE (precise was ignored [end-of-life])
trusty_linux-lts-saucy: DNE
trusty/esm_linux-lts-saucy: DNE
vivid/ubuntu-core_linux-lts-saucy: DNE
vivid/stable-phone-overlay_linux-lts-saucy: DNE
xenial_linux-lts-saucy: DNE
yakkety_linux-lts-saucy: DNE
zesty_linux-lts-saucy: DNE
artful_linux-lts-saucy: DNE
devel_linux-lts-saucy: DNE

Patches_linux-lts-trusty:
upstream_linux-lts-trusty: released (4.8~rc7)
precise_linux-lts-trusty: ignored (reached end-of-life)
precise/esm_linux-lts-trusty: released (3.13.0-132.181~precise1)
trusty_linux-lts-trusty: DNE
trusty/esm_linux-lts-trusty: DNE
vivid/ubuntu-core_linux-lts-trusty: DNE
vivid/stable-phone-overlay_linux-lts-trusty: DNE
xenial_linux-lts-trusty: DNE
yakkety_linux-lts-trusty: DNE
zesty_linux-lts-trusty: DNE
artful_linux-lts-trusty: DNE
devel_linux-lts-trusty: DNE

Patches_linux-goldfish:
upstream_linux-goldfish: released (4.8~rc7)
precise_linux-goldfish: DNE
precise/esm_linux-goldfish: DNE
trusty_linux-goldfish: ignored
trusty/esm_linux-goldfish: DNE (trusty was ignored)
vivid/ubuntu-core_linux-goldfish: DNE
vivid/stable-phone-overlay_linux-goldfish: DNE
xenial_linux-goldfish: ignored (abandoned)
yakkety_linux-goldfish: ignored (abandoned)
zesty_linux-goldfish: ignored (abandoned)
artful_linux-goldfish: DNE
devel_linux-goldfish: DNE

Patches_linux-grouper:
upstream_linux-grouper: released (4.8~rc7)
precise_linux-grouper: DNE
precise/esm_linux-grouper: DNE
trusty_linux-grouper: ignored
trusty/esm_linux-grouper: DNE (trusty was ignored)
vivid/ubuntu-core_linux-grouper: DNE
vivid/stable-phone-overlay_linux-grouper: DNE
xenial_linux-grouper: DNE
yakkety_linux-grouper: DNE
zesty_linux-grouper: DNE
artful_linux-grouper: DNE
devel_linux-grouper: DNE

Patches_linux-maguro:
upstream_linux-maguro: released (4.8~rc7)
precise_linux-maguro: DNE
precise/esm_linux-maguro: DNE
trusty_linux-maguro: ignored
trusty/esm_linux-maguro: DNE (trusty was ignored)
vivid/ubuntu-core_linux-maguro: DNE
vivid/stable-phone-overlay_linux-maguro: DNE
xenial_linux-maguro: DNE
yakkety_linux-maguro: DNE
zesty_linux-maguro: DNE
artful_linux-maguro: DNE
devel_linux-maguro: DNE

Patches_linux-mako:
upstream_linux-mako: released (4.8~rc7)
precise_linux-mako: DNE
precise/esm_linux-mako: DNE
trusty_linux-mako: ignored
trusty/esm_linux-mako: DNE (trusty was ignored)
vivid/ubuntu-core_linux-mako: DNE
vivid/stable-phone-overlay_linux-mako: ignored (abandoned)
xenial_linux-mako: ignored (abandoned)
yakkety_linux-mako: ignored (abandoned)
zesty_linux-mako: DNE
artful_linux-mako: DNE
devel_linux-mako: DNE

Patches_linux-manta:
upstream_linux-manta: released (4.8~rc7)
precise_linux-manta: DNE
precise/esm_linux-manta: DNE
trusty_linux-manta: ignored
trusty/esm_linux-manta: DNE (trusty was ignored)
vivid/ubuntu-core_linux-manta: DNE
vivid/stable-phone-overlay_linux-manta: DNE
xenial_linux-manta: DNE
yakkety_linux-manta: DNE
zesty_linux-manta: DNE
artful_linux-manta: DNE
devel_linux-manta: DNE

Patches_linux-flo:
upstream_linux-flo: released (4.8~rc7)
precise_linux-flo: DNE
precise/esm_linux-flo: DNE
trusty_linux-flo: ignored
trusty/esm_linux-flo: DNE (trusty was ignored)
vivid/ubuntu-core_linux-flo: DNE
vivid/stable-phone-overlay_linux-flo: ignored (abandoned)
xenial_linux-flo: ignored (abandoned)
yakkety_linux-flo: ignored (abandoned)
zesty_linux-flo: DNE
artful_linux-flo: DNE
devel_linux-flo: DNE

Patches_linux-raspi2:
upstream_linux-raspi2: released (4.8~rc7)
precise_linux-raspi2: DNE
precise/esm_linux-raspi2: DNE
trusty_linux-raspi2: DNE
trusty/esm_linux-raspi2: DNE
vivid/ubuntu-core_linux-raspi2: ignored (was needed now end-of-life)
vivid/stable-phone-overlay_linux-raspi2: DNE
xenial_linux-raspi2: released (4.4.0-1038.45)
yakkety_linux-raspi2: not-affected (4.8.0-1012.14)
zesty_linux-raspi2: not-affected (4.8.0-1013.15)
artful_linux-raspi2: not-affected (4.10.0-1004.6)
devel_linux-raspi2: not-affected (4.13.0-1005.5)

Patches_linux-lts-utopic:
upstream_linux-lts-utopic: released (4.8~rc7)
precise_linux-lts-utopic: DNE
precise/esm_linux-lts-utopic: DNE
trusty_linux-lts-utopic: ignored (out of standard support)
trusty/esm_linux-lts-utopic: DNE (trusty was ignored [out of standard support])
vivid/ubuntu-core_linux-lts-utopic: DNE
vivid/stable-phone-overlay_linux-lts-utopic: DNE
xenial_linux-lts-utopic: DNE
yakkety_linux-lts-utopic: DNE
zesty_linux-lts-utopic: DNE
artful_linux-lts-utopic: DNE
devel_linux-lts-utopic: DNE

Patches_linux-lts-vivid:
upstream_linux-lts-vivid: released (4.8~rc7)
precise_linux-lts-vivid: DNE
precise/esm_linux-lts-vivid: DNE
trusty_linux-lts-vivid: ignored (was needed now end-of-life)
trusty/esm_linux-lts-vivid: DNE (trusty was ignored [was needed now end-of-life])
vivid/ubuntu-core_linux-lts-vivid: DNE
vivid/stable-phone-overlay_linux-lts-vivid: DNE
xenial_linux-lts-vivid: DNE
yakkety_linux-lts-vivid: DNE
zesty_linux-lts-vivid: DNE
artful_linux-lts-vivid: DNE
devel_linux-lts-vivid: DNE

Patches_linux-lts-wily:
upstream_linux-lts-wily: released (4.8~rc7)
precise_linux-lts-wily: DNE
precise/esm_linux-lts-wily: DNE
trusty_linux-lts-wily: ignored (out of standard support)
trusty/esm_linux-lts-wily: DNE (trusty was ignored [out of standard support])
vivid/ubuntu-core_linux-lts-wily: DNE
vivid/stable-phone-overlay_linux-lts-wily: DNE
xenial_linux-lts-wily: DNE
yakkety_linux-lts-wily: DNE
zesty_linux-lts-wily: DNE
artful_linux-lts-wily: DNE
devel_linux-lts-wily: DNE

Patches_linux-lts-xenial:
upstream_linux-lts-xenial: released (4.8~rc7)
precise_linux-lts-xenial: DNE
precise/esm_linux-lts-xenial: DNE
trusty_linux-lts-xenial: released (4.4.0-47.68~14.04.1)
trusty/esm_linux-lts-xenial: released (4.4.0-47.68~14.04.1)
vivid/ubuntu-core_linux-lts-xenial: DNE
vivid/stable-phone-overlay_linux-lts-xenial: DNE
xenial_linux-lts-xenial: DNE
yakkety_linux-lts-xenial: DNE
zesty_linux-lts-xenial: DNE
artful_linux-lts-xenial: DNE
devel_linux-lts-xenial: DNE

Patches_linux-snapdragon:
upstream_linux-snapdragon: released (4.8~rc7)
precise_linux-snapdragon: DNE
precise/esm_linux-snapdragon: DNE
trusty_linux-snapdragon: DNE
trusty/esm_linux-snapdragon: DNE
vivid/ubuntu-core_linux-snapdragon: DNE
vivid/stable-phone-overlay_linux-snapdragon: DNE
xenial_linux-snapdragon: released (4.4.0-1035.39)
yakkety_linux-snapdragon: released (4.4.0-1035.39)
zesty_linux-snapdragon: not-affected (4.4.0-1033.37)
artful_linux-snapdragon: not-affected (4.4.0-1050.54)
devel_linux-snapdragon: not-affected (4.4.0-1077.82)

Patches_linux-aws:
upstream_linux-aws: released (4.8~rc7)
precise_linux-aws: DNE
precise/esm_linux-aws: DNE
trusty_linux-aws: not-affected (4.4.0-1002.2)
trusty/esm_linux-aws: not-affected (4.4.0-1002.2)
vivid/ubuntu-core_linux-aws: DNE
vivid/stable-phone-overlay_linux-aws: DNE
xenial_linux-aws: not-affected (4.4.0-1001.10)
esm-infra/xenial_linux-aws: not-affected (4.4.0-1001.10)
yakkety_linux-aws: DNE
zesty_linux-aws: DNE
artful_linux-aws: DNE
devel_linux-aws: DNE

Patches_linux-hwe-edge:
upstream_linux-hwe-edge: released (4.8~rc7)
precise_linux-hwe-edge: DNE
precise/esm_linux-hwe-edge: DNE
trusty_linux-hwe-edge: DNE
trusty/esm_linux-hwe-edge: DNE
vivid/ubuntu-core_linux-hwe-edge: DNE
vivid/stable-phone-overlay_linux-hwe-edge: DNE
xenial_linux-hwe-edge: not-affected (4.8.0-36.36~16.04.1)
esm-infra/xenial_linux-hwe-edge: not-affected (4.8.0-36.36~16.04.1)
yakkety_linux-hwe-edge: DNE
zesty_linux-hwe-edge: DNE
artful_linux-hwe-edge: DNE
devel_linux-hwe-edge: DNE

Patches_linux-hwe:
upstream_linux-hwe: released (4.8~rc7)
precise_linux-hwe: DNE
precise/esm_linux-hwe: DNE
trusty_linux-hwe: DNE
trusty/esm_linux-hwe: DNE
vivid/ubuntu-core_linux-hwe: DNE
vivid/stable-phone-overlay_linux-hwe: DNE
xenial_linux-hwe: not-affected (4.8.0-36.36~16.04.1)
esm-infra/xenial_linux-hwe: not-affected (4.8.0-36.36~16.04.1)
yakkety_linux-hwe: DNE
zesty_linux-hwe: DNE
artful_linux-hwe: DNE
devel_linux-hwe: DNE

Patches_linux-gke:
upstream_linux-gke: released (4.8~rc7)
precise_linux-gke: DNE
precise/esm_linux-gke: DNE
trusty_linux-gke: DNE
trusty/esm_linux-gke: DNE
vivid/ubuntu-core_linux-gke: DNE
vivid/stable-phone-overlay_linux-gke: DNE
xenial_linux-gke: not-affected (4.4.0-1003.3)
yakkety_linux-gke: DNE
zesty_linux-gke: DNE
artful_linux-gke: DNE
devel_linux-gke: DNE

Patches_linux-azure:
upstream_linux-azure: released (4.8~rc7)
precise/esm_linux-azure: DNE
trusty_linux-azure: not-affected (4.15.0-1023.24~14.04.1)
trusty/esm_linux-azure: not-affected (4.15.0-1023.24~14.04.1)
vivid/ubuntu-core_linux-azure: DNE
vivid/stable-phone-overlay_linux-azure: DNE
xenial_linux-azure: not-affected (4.11.0-1009.9)
esm-infra/xenial_linux-azure: not-affected (4.11.0-1009.9)
yakkety_linux-azure: DNE
zesty_linux-azure: DNE
artful_linux-azure: DNE
devel_linux-azure: DNE


Patches_linux-gcp:
upstream_linux-gcp: released (4.8~rc7)
precise/esm_linux-gcp: DNE
trusty_linux-gcp: DNE
trusty/esm_linux-gcp: DNE
vivid/ubuntu-core_linux-gcp: DNE
xenial_linux-gcp: not-affected (4.10.0-1004.4)
esm-infra/xenial_linux-gcp: not-affected (4.10.0-1004.4)
yakkety_linux-gcp: DNE
zesty_linux-gcp: DNE
artful_linux-gcp: DNE
devel_linux-gcp: DNE

Patches_linux-kvm:
upstream_linux-kvm: released (4.8~rc7)
precise/esm_linux-kvm: DNE
trusty_linux-kvm: DNE
trusty/esm_linux-kvm: DNE
vivid/ubuntu-core_linux-kvm: DNE
xenial_linux-kvm: not-affected (4.4.0-1004.9)
esm-infra/xenial_linux-kvm: not-affected (4.4.0-1004.9)
zesty_linux-kvm: DNE
artful_linux-kvm: DNE
devel_linux-kvm: DNE

Patches_linux-euclid:
upstream_linux-euclid: released (4.8~rc7)
precise/esm_linux-euclid: DNE
trusty_linux-euclid: DNE
trusty/esm_linux-euclid: DNE
vivid/ubuntu-core_linux-euclid: DNE
xenial_linux-euclid: not-affected (4.4.0-9019.20)
zesty_linux-euclid: DNE
artful_linux-euclid: DNE
devel_linux-euclid: DNE

Patches_linux-oem:
upstream_linux-oem: released (4.8~rc7)
precise/esm_linux-oem: DNE
trusty_linux-oem: DNE
trusty/esm_linux-oem: DNE
xenial_linux-oem: not-affected (4.13.0-1008.9)
zesty_linux-oem: DNE
artful_linux-oem: DNE
devel_linux-oem: DNE