CVE-2016-4440
HIGHLinux Kernel 4.5-4.6.3 - Denial of Service via APICv State Mishandling
Title source: llmDescription
arch/x86/kvm/vmx.c in the Linux kernel through 4.6.3 mishandles the APICv on/off state, which allows guest OS users to obtain direct APIC MSR access on the host OS, and consequently cause a denial of service (host OS crash) or possibly execute arbitrary code on the host OS, via x2APIC mode.
References (4)
Core 4
Core References
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1337806
Vendor Advisory x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/05/20/2
Vendor Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f
Scores
CVSS v3
7.8
EPSS
0.0037
EPSS Percentile
29.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-264
Status
published
Products (1)
linux/linux_kernel
4.5 - 4.7
Published
Jun 27, 2016
Tracked Since
Feb 18, 2026