CVE-2017-15306
Published: 6 November 2017
The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM ioctl call to /dev/kvm.
From the Ubuntu Security Team
It was discovered that a null pointer dereference error existed in the PowerPC KVM implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash).
Notes
Author | Note |
---|---|
sbeattie | PPC arches only reproducer in commit message |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
artful |
Released
(4.13.0-19.22)
|
trusty |
Not vulnerable
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Not vulnerable
|
|
zesty |
Ignored
(end of life, was pending)
|
|
Patches: Introduced by 23528bb21ee2c9b27f3feddd77a2a3351a8df148 |
||
linux-armadaxp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-aws Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Not vulnerable
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Not vulnerable
|
|
zesty |
Does not exist
|
|
linux-azure Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Released
(4.13.0-1005.7)
|
|
zesty |
Does not exist
|
|
linux-euclid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Not vulnerable
|
|
zesty |
Does not exist
|
|
linux-flo Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-gcp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Released
(4.13.0-1002.5)
|
|
zesty |
Does not exist
|
|
linux-gke Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Not vulnerable
|
|
zesty |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
linux-grouper Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Released
(4.13.0-26.29~16.04.2)
|
|
zesty |
Does not exist
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Released
(4.13.0-26.29~16.04.2)
|
|
zesty |
Does not exist
|
|
linux-kvm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Not vulnerable
|
|
zesty |
Does not exist
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-raring Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-trusty Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Ignored
(end of life, was needs-triage)
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Not vulnerable
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-manta Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-oem Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Released
(4.13.0-1010.11)
|
|
zesty |
Does not exist
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
artful |
Released
(4.13.0-1008.8)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Not vulnerable
|
|
zesty |
Ignored
(end of life, was pending)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc7)
|
|
xenial |
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 |