---
cve: "CVE-2023-52556"
severity: "MEDIUM"
cvss: 6.2
epss: "14%"
vendor: "OpenBSD"
kev: false
exploited: false
published: "2024-03-01 17:15:07"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-05T06:02:40+02:00"
---

# CVE-2023-52556

> 6.2 MEDIUM · 🧪 PoC

## Beschreibung

In OpenBSD 7.4 before errata 009, a race condition between pf(4)'s processing of packets and expiration of packet states may cause a kernel panic.

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
```

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

## Referenzen

- <https://ftp.openbsd.org/pub/OpenBSD/patches/7.4/common/009_pf.patch.sig>
- <https://github.com/openbsd/src/commit/9d9f4dc6c833cb79d13f836581e3a781d06842e7>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-52556) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_