CVE-2018-19962

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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.9 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

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

Exploitability : 1.1 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.9^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://xenbits.xen.org/xsa/advisory-275.html	Vendor Advisory Patch
http://www.securityfocus.com/bid/106182	Third Party Advisory VDB Entry
https://support.citrix.com/article/CTX239432	Third Party Advisory
https://www.debian.org/security/2019/dsa-4369	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html

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Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:a:citrix:xenserver:7.0:::::::*
	cpe:2.3:a:citrix:xenserver:7.6:::::::*
	cpe:2.3:a:citrix:xenserver:7.5:::::::*
	cpe:2.3:a:citrix:xenserver:7.1:cu1:::ltsr:::*

Information

Published : 2018-12-07 20:29

Updated : 2019-10-02 17:03

NVD link : CVE-2018-19962

Mitre link : CVE-2018-19962

JSON object : View

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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Products Affected

debian

debian_linux

citrix

xenserver

xen

xen

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