---
cve: "CVE-2025-6966"
severity: "MEDIUM"
cvss: 6.9
epss: "14%"
vendor: "Canonical"
kev: false
exploited: false
published: "2025-12-05 13:16:05"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T15:43:51+02:00"
---

# CVE-2025-6966

> 6.9 MEDIUM

## Beschreibung

NULL pointer dereference in TagSection.keys() in python-apt on APT-based Linux systems allows a local attacker to cause a denial of service (process crash) via a crafted deb822 file with a malformed non-UTF-8 key.

## CVSS-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://bugs.launchpad.net/ubuntu/+source/python-apt/+bug/2091865>
- <https://lists.debian.org/debian-lts-announce/2025/12/msg00019.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-6966) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_