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VULNERABILITIES

CVE-2016-4440 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f CVEVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1337806 CVEIssue Tracking
https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f CVEVendor Advisory
http://www.openwall.com/lists/oss-security/2016/05/20/2 CVEMailing List
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f [email protected]Vendor Advisory

see all 8 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-264Permissions, Privileges, and Access Controls[email protected]

Affected Products

ProductVersions
linux linux kernel
>= 4.5, < 4.7

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2016-4440
NVD Published Date:
Jun 27, 2016
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2016-4440 Details - Not Deferred