CVE-2017-12188
Published: 11 October 2017
arch/x86/kvm/mmu.c in the Linux kernel through 4.13.5, when nested virtualisation is used, does not properly traverse guest pagetable entries to resolve a guest virtual address, which allows L1 guest OS users to execute arbitrary code on the host OS or cause a denial of service (incorrect index during page walking, and host OS crash), aka an "MMU potential stack buffer overrun."
From the Ubuntu Security Team
It was discovered that the KVM subsystem in the Linux kernel did not properly keep track of nested levels in guest page tables. A local attacker in a guest VM could use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS.
Notes
Author | Note |
---|---|
sbeattie | fd19d3b45164466a4adce7cbff448ba9189e1427 might not be strictly necessary |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
upstream |
Released
(4.14~rc5)
|
artful |
Released
(4.13.0-17.20)
|
|
trusty |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
zesty |
Released
(4.10.0-40.44)
|
|
Patches: Introduced by 6bb69c9b69c315200ddc2bc79aee14c0184cf5b2 Introduced by 6bb69c9b69c315200ddc2bc79aee14c0184cf5b2 |
||
linux-armadaxp Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
artful |
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
|
|
xenial |
Not vulnerable
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-azure Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
xenial |
Released
(4.11.0-1015.15)
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-euclid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-flo Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-gcp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Released
(4.10.0-1009.9)
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-gke Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-hwe Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Released
(4.10.0-40.44~16.04.1)
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Released
(4.10.0-40.44~16.04.1)
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-kvm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
upstream |
Released
(4.14~rc5)
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
upstream |
Released
(4.14~rc5)
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
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
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
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
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Ignored
(end of life, was needs-triage)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Not vulnerable
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-maguro Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-mako Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-manta Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
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
(4.14~rc5)
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
artful |
Released
(4.13.0-1006.6)
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
|
|
zesty |
Released
(4.10.0-1021.24)
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
upstream |
Released
(4.14~rc5)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
upstream |
Released
(4.14~rc5)
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
upstream |
Released
(4.14~rc5)
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 |
Attack vector | Local |
Attack complexity | High |
Privileges required | Low |
User interaction | None |
Scope | Changed |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12188
- https://bugzilla.redhat.com/show_bug.cgi?id=1500380
- https://patchwork.kernel.org/patch/9996579/
- https://patchwork.kernel.org/patch/9996587/
- https://ubuntu.com/security/notices/USN-3484-1
- https://ubuntu.com/security/notices/USN-3484-2
- https://ubuntu.com/security/notices/USN-3488-1
- https://ubuntu.com/security/notices/USN-3487-1
- https://ubuntu.com/security/notices/USN-3484-3
- NVD
- Launchpad
- Debian