CVE-2018-7542

MEDIUM

Description

An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.

References

http://www.securitytracker.com/id/1040776

https://security.gentoo.org/glsa/201810-06

https://www.debian.org/security/2018/dsa-4131

https://xenbits.xen.org/xsa/advisory-256.html

Details

Source: MITRE

Published: 2018-02-27

Updated: 2018-10-31

Type: CWE-476

Risk Information

CVSS v2.0

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 6.5

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

Impact Score: 4

Exploitability Score: 2

Severity: MEDIUM