CVE-2018-7540

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.9 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

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

Exploitability : 2.0 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

4.9^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://xenbits.xen.org/xsa/advisory-252.html	Vendor Advisory
https://www.debian.org/security/2018/dsa-4131	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html	Third Party Advisory
https://support.citrix.com/article/CTX232655
http://www.securityfocus.com/bid/103174
https://support.citrix.com/article/CTX232096
http://www.securitytracker.com/id/1040773
https://security.gentoo.org/glsa/201810-06
https://lists.debian.org/debian-lts-announce/2018/11/msg00013.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:*:*:*:*:*:*:*

Information

Published : 2018-02-27 11:29

Updated : 2018-11-13 03:29

NVD link : CVE-2018-7540

Mitre link : CVE-2018-7540

JSON object : View

CWE

CWE-400

Uncontrolled Resource Consumption

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Products Affected

debian

debian_linux

xen

xen

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