---
cve: "CVE-2023-52436"
severity: "HIGH"
cvss: 7.8
epss: "30%"
vendor: "Linux"
kev: false
exploited: false
published: "2024-02-20 21:15:08"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T01:35:46+02:00"
---

# CVE-2023-52436

> 7.8 HIGH

## Beschreibung

In the Linux kernel, the following vulnerability has been resolved:

f2fs: explicitly null-terminate the xattr list

When setting an xattr, explicitly null-terminate the xattr list.  This
eliminates the fragile assumption that the unused xattr space is always
zeroed.

## 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)

- Kernel ≥ 4.19.306
- Kernel ≥ 5.4.268
- Kernel ≥ 5.10.209
- Kernel ≥ 5.15.148
- Kernel ≥ 6.1.74
- Kernel ≥ 6.6.13
- Kernel ≥ 6.7.1

## Referenzen

- <https://git.kernel.org/stable/c/16ae3132ff7746894894927c1892493693b89135>
- <https://git.kernel.org/stable/c/12cf91e23b126718a96b914f949f2cdfeadc7b2a>
- <https://git.kernel.org/stable/c/3e47740091b05ac8d7836a33afd8646b6863ca52>
- <https://git.kernel.org/stable/c/32a6cfc67675ee96fe107aeed5af9776fec63f11>
- <https://git.kernel.org/stable/c/5de9e9dd1828db9b8b962f7ca42548bd596deb8a>
- <https://git.kernel.org/stable/c/2525d1ba225b5c167162fa344013c408e8b4de36>
- <https://git.kernel.org/stable/c/f6c30bfe5a49bc38cae985083a11016800708fea>
- <https://git.kernel.org/stable/c/e26b6d39270f5eab0087453d9b544189a38c8564>
- <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-2023-52436) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_