---
cve: "CVE-2018-10901"
severity: "HIGH"
cvss: 7.8
epss: "52%"
vendor: "[UNKNOWN]"
kev: false
exploited: false
published: "2018-07-26 17:29:00"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T10:13:21+02:00"
---

# CVE-2018-10901

> 7.8 HIGH

## Beschreibung

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <http://www.securityfocus.com/bid/104905>
- <https://access.redhat.com/errata/RHSA-2018:2393>
- <https://access.redhat.com/errata/RHSA-2018:2390>
- <https://access.redhat.com/errata/RHSA-2018:2391>
- <https://access.redhat.com/errata/RHSA-2018:2392>
- <https://access.redhat.com/errata/RHSA-2018:2394>
- <https://www.oracle.com/security-alerts/cpujul2020.html>
- <https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html>
- <https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0>
- <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3444d7da1839b851eefedd372978d8a982316c36>
- <https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10901>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2018-10901) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_