CVE-2017-12188 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current Description
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."
Source:
MITRE
View Analysis Description
Analysis Description
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."
Source:
MITRE
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
7.8 HIGH
Vector:
AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
(V3.0 legend)
Impact Score:
6.0
Exploitability Score:
1.1
Attack Vector (AV):
Local
Attack Complexity (AC):
High
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Changed
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
6.9 MEDIUM
Vector:
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
(V2 legend)
Impact Subscore:
10.0
Exploitability Subscore:
3.4
Access Vector (AV):
Local
Access Complexity (AC):
Medium
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
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Technical Details
Vulnerability Type
(View All)
- Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)
Change History
3 change records found
- show changes
CVE Modified by MITRE -
3/7/2018 9:29:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://access.redhat.com/errata/RHSA-2018:0395 [No Types Assigned] |
| Added |
Reference |
|
https://access.redhat.com/errata/RHSA-2018:0412 [No Types Assigned] |
Initial Analysis -
11/3/2017 1:39:17 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:linux:linux_kernel:4.13.5:*:*:*:*:*:*:* (and previous) |
| Added |
CVSS V2 |
|
(AV:L/AC:M/Au:N/C:C/I:C/A:C) |
| Added |
CVSS V3 |
|
AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
| Added |
CWE |
|
CWE-22 |
| Changed |
Reference Type |
http://www.securityfocus.com/bid/101267 No Types Assigned |
http://www.securityfocus.com/bid/101267 Third Party Advisory, VDB Entry |
| Changed |
Reference Type |
https://bugzilla.redhat.com/show_bug.cgi?id=1500380 No Types Assigned |
https://bugzilla.redhat.com/show_bug.cgi?id=1500380 Issue Tracking, Patch, Third Party Advisory |
| Changed |
Reference Type |
https://patchwork.kernel.org/patch/9996579/ No Types Assigned |
https://patchwork.kernel.org/patch/9996579/ Issue Tracking, Patch, Vendor Advisory |
| Changed |
Reference Type |
https://patchwork.kernel.org/patch/9996587/ No Types Assigned |
https://patchwork.kernel.org/patch/9996587/ Issue Tracking, Patch, Vendor Advisory |
CVE Modified by MITRE -
10/14/2017 9:29:03 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/101267 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2017-12188
NVD Published Date:
10/11/2017
NVD Last Modified:
03/07/2018
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