CVE-2016-4440 Detail
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.
Source:
MITRE
Description Last Modified:
06/27/2016
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
7.8 HIGH
Vector:
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
(V3 legend)
Impact Score:
5.9
Exploitability Score:
1.8
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
7.2 HIGH
Vector:
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
(V2 legend)
Impact Subscore:
10.0
Exploitability Subscore:
3.9
Access Vector (AV):
Local
Access Complexity (AC):
Low
Authentication (AU):
None
Confidentiality (C):
Complete
Integrity (I):
Complete
Availability (A):
Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because
they may have information that would be of interest to you. No inferences should be drawn on account of other sites
being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose.
NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further,
NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about
this page to nvd@nist.gov.
Technical Details
Vulnerability Type
(View All)
- Permissions, Privileges, and Access Control (CWE-264)
Change History
2 change records found
- show changes
Modified Analysis -
6/27/2016 1:59:43 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
Configuration 1
OR
*cpe:2.3:o:linux:linux_kernel:4.6.3:*:*:*:*:*:*:* (and previous) |
| Added |
CVSS V2 |
|
(AV:L/AC:L/Au:N/C:C/I:C/A:C) |
| Added |
CVSS V3 |
|
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Added |
CWE |
|
CWE-264 |
| Changed |
Reference Type |
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f No Types Assigned |
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f Advisory |
| Changed |
Reference Type |
https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f No Types Assigned |
https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f Advisory |
Initial CVE Analysis -
6/27/2016 12:58:09 PM
Quick Info
CVE Dictionary Entry:
CVE-2016-4440
NVD Published Date:
06/27/2016
NVD Last Modified:
06/27/2016
|