Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2016-5828

Published: 27 June 2016

The start_thread function in arch/powerpc/kernel/process.c in the Linux kernel through 4.6.3 on powerpc platforms mishandles transactional state, which allows local users to cause a denial of service (invalid process state or TM Bad Thing exception, and system crash) or possibly have unspecified other impact by starting and suspending a transaction before an exec system call.

From the Ubuntu Security Team

Cyril Bur discovered that on PowerPC platforms, the Linux kernel mishandled transactional memory state on exec(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

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

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

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

trusty Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
xenial Not vulnerable
(4.4.0-1001.10)
yakkety Does not exist

upstream
Released (4.7~rc6)
linux-flo
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
wily Not vulnerable

xenial Not vulnerable

yakkety Not vulnerable

upstream
Released (4.7~rc6)
linux-gke
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.4.0-1003.3)
yakkety Does not exist

upstream
Released (4.7~rc6)
linux-goldfish
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
wily Not vulnerable

xenial Not vulnerable

yakkety Not vulnerable

upstream
Released (4.7~rc6)
linux-grouper
Launchpad, Ubuntu, Debian
precise Does not exist

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

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
linux-hwe
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

upstream
Released (4.7~rc6)
linux-hwe-edge
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

upstream
Released (4.7~rc6)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
precise Ignored
(end of life)
trusty Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
linux-lts-saucy
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
precise
Released (3.13.0-95.142~precise1)
trusty Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
linux-lts-utopic
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
linux-lts-vivid
Launchpad, Ubuntu, Debian
precise Does not exist

trusty
Released (3.19.0-68.76~14.04.1)
wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
linux-lts-wily
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
linux-lts-xenial
Launchpad, Ubuntu, Debian
precise Does not exist

trusty
Released (4.4.0-36.55~14.04.1)
wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
linux-maguro
Launchpad, Ubuntu, Debian
precise Does not exist

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

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
linux-mako
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
wily Not vulnerable

xenial Not vulnerable

yakkety Not vulnerable

upstream
Released (4.7~rc6)
linux-manta
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
wily Not vulnerable

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
linux-qcm-msm
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.7~rc6)
linux-raspi2
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

wily Ignored
(end of life)
xenial
Released (4.4.0-1021.27)
yakkety Not vulnerable
(4.8.0-1012.14)
upstream
Released (4.7~rc6)
linux-snapdragon
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

wily Does not exist

xenial
Released (4.4.0-1024.27)
yakkety Not vulnerable
(4.4.0-1029.32)
upstream
Released (4.7~rc6)
linux
Launchpad, Ubuntu, Debian
upstream
Released (4.7~rc6)
precise Not vulnerable

trusty
Released (3.13.0-95.142)
wily Ignored
(end of life)
xenial
Released (4.4.0-36.55)
yakkety Not vulnerable
(4.8.0-11.12)
Patches:
Introduced by

bc2a9408fa65195288b41751016c36fd00a75a85

Fixed by 8e96a87c5431c256feb65bcfc5aec92d9f7839b6
linux-linaro-omap
Launchpad, Ubuntu, Debian
upstream
Released (4.7~rc6)
precise Ignored
(end of life)
trusty Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
upstream
Released (4.7~rc6)
precise Ignored
(end of life)
trusty Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

linux-ti-omap4
Launchpad, Ubuntu, Debian
upstream
Released (4.7~rc6)
precise Not vulnerable

trusty Does not exist

wily Does not exist

xenial Does not exist

yakkety 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