CVE-2018-7542

medium
New! CVE Severity Now Using CVSS v3

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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

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

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

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions from 4.8.0 to 4.10.0 (inclusive)

Configuration 2

OR

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

Tenable Plugins

View all (7 total)

IDNameProductFamilySeverity
118506GLSA-201810-06 : Xen: Multiple vulnerabilities (Foreshadow) (Meltdown) (Spectre)NessusGentoo Local Security Checks
critical
109751openSUSE Security Update : xen (openSUSE-2018-454) (Meltdown)NessusSuSE Local Security Checks
high
109677SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:1184-1) (Meltdown)NessusSuSE Local Security Checks
high
108492Fedora 26 : xen (2018-0746dac335)NessusFedora Local Security Checks
high
107176Fedora 27 : xen (2018-c553a586c8)NessusFedora Local Security Checks
high
107123Debian DSA-4131-1 : xen - security updateNessusDebian Local Security Checks
high
107099Xen arch_domain_create() Function Local APIC Assumption NULL Pointer Dereference Guest-to-host DoS (XSA-256)NessusMisc.
medium