CVE-2016-8630
Published: 27 November 2016
The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction.
From the Ubuntu Security Team
It was discovered that the KVM implementation for x86/x86_64 in the Linux kernel could dereference a null pointer. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the KVM host.
Notes
Author | Note |
---|---|
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
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.10.0-19.21)
|
upstream |
Released
(4.9~rc4)
|
|
yakkety |
Released
(4.8.0-32.34)
|
|
zesty |
Not vulnerable
(4.9.0-11.12)
|
|
precise |
Not vulnerable
|
|
trusty |
Not vulnerable
|
|
xenial |
Released
(4.4.0-57.78)
|
|
Patches: Introduced by 41061cdb98a0bec464278b4db8e894a3121671f5 |
||
linux-armadaxp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
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
(4.4.0-1002.2)
|
|
xenial |
Not vulnerable
(4.4.0-1001.10)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-azure Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
xenial |
Not vulnerable
(4.11.0-1009.9)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-euclid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.4.0-9019.20)
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-flo Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-gcp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.10.0-1004.4)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-gke Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.4.0-1003.3)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
upstream |
Released
(4.9~rc4)
|
|
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 |
Released
(4.9~rc4)
|
|
linux-hwe Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-kvm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.4.0-1004.9)
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-linaro-omap 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 |
Released
(4.9~rc4)
|
|
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 |
Released
(4.9~rc4)
|
|
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 |
Released
(4.9~rc4)
|
|
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 |
Released
(4.9~rc4)
|
|
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 |
Released
(4.9~rc4)
|
|
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 |
Released
(4.9~rc4)
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-trusty Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Ignored
(end of life, was needed)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Released
(4.4.0-57.78~14.04.1)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
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 |
Released
(4.9~rc4)
|
|
linux-mako Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
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 |
Released
(4.9~rc4)
|
|
linux-oem Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.13.0-1008.9)
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
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 |
Released
(4.9~rc4)
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.10.0-1004.6)
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.4.0-1038.45)
|
|
yakkety |
Released
(4.8.0-1021.24)
|
|
zesty |
Not vulnerable
(4.8.0-1021.24)
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.4.0-1050.54)
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.4.0-1042.46)
|
|
yakkety |
Released
(4.4.0-1046.50)
|
|
zesty |
Not vulnerable
(4.4.0-1046.50)
|
|
upstream |
Released
(4.9~rc4)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.9~rc4)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
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 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8630
- http://www.openwall.com/lists/oss-security/2016/11/22/3
- https://ubuntu.com/security/notices/USN-3161-1
- https://ubuntu.com/security/notices/USN-3161-2
- https://ubuntu.com/security/notices/USN-3161-3
- https://ubuntu.com/security/notices/USN-3161-4
- https://ubuntu.com/security/notices/USN-3162-1
- https://ubuntu.com/security/notices/USN-3162-2
- NVD
- Launchpad
- Debian