Current Description
An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.
Source:
MITRE
Description Last Modified:
12/07/2018
View Analysis Description
Analysis Description
An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.
Source:
MITRE
Description Last Modified:
12/07/2018
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 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
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Change History
2 change records found
- show changes
Initial Analysis -
12/28/2018 1:12:02 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:xen:xen:4.11.0:*:*:*:*:*:*:* |
| 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-399 |
| Changed |
Reference Type |
http://www.securityfocus.com/bid/106182 No Types Assigned |
http://www.securityfocus.com/bid/106182 Third Party Advisory, VDB Entry |
| Changed |
Reference Type |
https://xenbits.xen.org/xsa/advisory-276.html No Types Assigned |
https://xenbits.xen.org/xsa/advisory-276.html Patch, Third Party Advisory |
CVE Modified by MITRE -
12/13/2018 6:29:04 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/106182 [No Types Assigned] |