CVE-2018-18883

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.

CVSS v3 8.8 HIGH
CVSS v2.0 7.2 HIGH

8.8^/10

CVSS v3 : HIGH

Vector : AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://www.securityfocus.com/bid/105817	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1042021	Third Party Advisory VDB Entry
https://xenbits.xen.org/xsa/advisory-278.html	Mitigation Patch Vendor Advisory
http://www.securityfocus.com/bid/105817	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1042021	Third Party Advisory VDB Entry
https://xenbits.xen.org/xsa/advisory-278.html	Mitigation Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

History

21 Nov 2024, 03:56

Type	Values Removed	Values Added
References	~~() http://www.securityfocus.com/bid/105817 - Third Party Advisory, VDB Entry~~	() http://www.securityfocus.com/bid/105817 - Third Party Advisory, VDB Entry
References	~~() http://www.securitytracker.com/id/1042021 - Third Party Advisory, VDB Entry~~	() http://www.securitytracker.com/id/1042021 - Third Party Advisory, VDB Entry
References	~~() https://xenbits.xen.org/xsa/advisory-278.html - Mitigation, Patch, Vendor Advisory~~	() https://xenbits.xen.org/xsa/advisory-278.html - Mitigation, Patch, Vendor Advisory

Information

Published : 2018-11-01 00:29

Updated : 2024-11-21 03:56

NVD link : CVE-2018-18883

Mitre link : CVE-2018-18883

CVE.ORG link : CVE-2018-18883

JSON object : View

Products Affected

xen

xen

CWE

CWE-476

NULL Pointer Dereference

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