---
cve: "CVE-2023-1252"
severity: "HIGH"
cvss: 7.8
epss: "22%"
vendor: "n/a"
kev: false
exploited: false
published: "2023-03-23 21:15:19"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T06:50:45+02:00"
---

# CVE-2023-1252

> 7.8 HIGH

## Beschreibung

A use-after-free flaw was found in the Linux kernel’s Ext4 File System in how a user triggers several file operations simultaneously with the overlay FS usage. This flaw allows a local user to crash or potentially escalate their privileges on the system. Only if patch 9a2544037600 ("ovl: fix use after free in struct ovl_aio_req") not applied yet, the kernel could be affected.

## 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://lore.kernel.org/lkml/20211115165433.449951285%40linuxfoundation.org/>
- <https://security.netapp.com/advisory/ntap-20230505-0005/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-1252) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_