CVE-2018-19965

An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.

CVSS v3.0 5.6 MEDIUM
CVSS v2.0 4.7 MEDIUM

5.6^/10

CVSS v3.0 : MEDIUM

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

Exploitability : 1.1 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

4.7^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.4 / Impact : 6.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://xenbits.xen.org/xsa/advisory-279.html	Mitigation Patch Vendor Advisory
http://www.securityfocus.com/bid/106182	Third Party Advisory VDB Entry
https://support.citrix.com/article/CTX239432	Patch 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

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Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

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

Configuration 3 (hide)

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

Information

Published : 2018-12-07 20:29

Updated : 2019-10-02 17:03

NVD link : CVE-2018-19965

Mitre link : CVE-2018-19965

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

debian

debian_linux

citrix

xenserver

xen

xen

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