National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-18883 Detail

Current Description

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.

Source:  MITRE
Description Last Modified:  10/31/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H (V3 legend)
Impact Score: 6.0
Exploitability Score: 2.0


Attack Vector (AV): Local
Attack Complexity (AC): Low
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: 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

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Hyperlink 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

Technical Details

Vulnerability Type (View All)

  • NULL Pointer Dereference (CWE-476)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/o:xen:xen
     Show Matching CPE(s)
From (including)
4.9.0
Up to (including)
4.11.0


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-18883
NVD Published Date:
10/31/2018
NVD Last Modified:
01/24/2019