---
cve: "CVE-2018-7540"
severity: "LOW"
cvss: 3.1
epss: "43%"
vendor: "n/a"
kev: false
exploited: false
published: "2018-02-27 19:29:00"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T05:07:19+02:00"
---

# CVE-2018-7540

> 3.1 LOW

## Beschreibung

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.

## Referenzen

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

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2018-7540) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_