CVE-2016-4440

Published: Jun 27, 2016Modified: May 6, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

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.

Affected (1)

Products: Linux: Linux Kernel

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	From 4.5 to 4.7

Related CWEs

References (8)

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f

Source: secalert@redhat.com

Vendor Advisory

http://www.openwall.com/lists/oss-security/2016/05/20/2

Source: secalert@redhat.com

Mailing List

https://bugzilla.redhat.com/show_bug.cgi?id=1337806

Source: secalert@redhat.com

Issue Tracking

https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f

Source: secalert@redhat.com

Vendor Advisory

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

http://www.openwall.com/lists/oss-security/2016/05/20/2

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing List

https://bugzilla.redhat.com/show_bug.cgi?id=1337806

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking

https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.