---
cve: "CVE-2023-6040"
severity: "HIGH"
cvss: 7.8
epss: "0.3%"
vendor: "The Linux Kernel Organization"
kev: false
exploited: false
published: "2024-01-12 02:15:44"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T20:52:38+02:00"
---

# CVE-2023-6040

> 7.8 HIGH · 🧪 PoC

## Beschreibung

An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 (netfilter: nf_tables: Reject tables of unsupported family); While creating a new netfilter table, lack of a safeguard against invalid nf_tables family (pf) values within `nf_tables_newtable` function enables an attacker to achieve out-of-bounds access.

## 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 |

## Patch verfügbar (OSV)

- 3123109284176b1532874591f7c81f3837bbdc17 (Commit)

## Referenzen

- <https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6040>
- <https://www.openwall.com/lists/oss-security/2024/01/12/1>
- <http://www.openwall.com/lists/oss-security/2024/01/12/1>
- <http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html>
- <https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html>
- <https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-6040) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_