CVE-2018-19962

Severity CVSS v4.0:

Pending analysis

Type:

CWE-200 Information Leak / Disclosure

Publication date:

08/12/2018

Last modified:

07/11/2023

Description

An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because small IOMMU mappings are unsafely combined into larger ones.

Impact

Vector 3.x

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

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

Base Score 3.x

7.80

Severity 3.x

HIGH

Vector 2.0

AV:L/AC:M/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.90 MEDIUM
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

6.90

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:xen:xen::::::::		4.11.1 (including)
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:a:citrix:xenserver:7.0:::::::*
cpe:2.3:a:citrix:xenserver:7.1:cu1:::ltsr:::*
cpe:2.3:a:citrix:xenserver:7.5:::::::*
cpe:2.3:a:citrix:xenserver:7.6:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:o:xen:xen::::::::		4.11.1 (including)
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:a:citrix:xenserver:7.0:::::::*
cpe:2.3:a:citrix:xenserver:7.1:cu1:::ltsr:::*
cpe:2.3:a:citrix:xenserver:7.5:::::::*
cpe:2.3:a:citrix:xenserver:7.6:::::::*

CVE-2018-19962

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools