---
cve: "CVE-2023-0386"
severity: "HIGH"
cvss: 7.8
epss: "7.9%"
vendor: "n/a"
kev: true
exploited: true
published: "2023-03-22 21:15:18"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T22:23:40+02:00"
---

# CVE-2023-0386

> 7.8 HIGH · ⚠️ CISA KEV (453 Tage) · 🔓 Exploited · 🧪 PoC

## Beschreibung

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.

## CVSS-Vektor

```
CVSS:3.1/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

- <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a>
- <https://security.netapp.com/advisory/ntap-20230420-0004/>
- <https://www.debian.org/security/2023/dsa-5402>
- <https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html>
- <http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html>
- <https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-0386) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_