---
cve: "CVE-2021-44142"
severity: "HIGH"
cvss: 8.8
epss: "73.9%"
vendor: "Samba"
kev: false
exploited: false
published: "2022-02-21 15:15:07"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T08:47:38+02:00"
---

# CVE-2021-44142

> 8.8 HIGH

## Beschreibung

The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| 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)

- e0de3de2504616cffc42b66e865f31380f55305c (Commit)
- 4c6b1950c479c33fb44ee3d0881bb4315a68fbd0 (Commit)

## Referenzen

- <https://www.samba.org/samba/security/CVE-2021-44142.html>
- <https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin>
- <https://kb.cert.org/vuls/id/119678>
- <https://bugzilla.samba.org/show_bug.cgi?id=14914>
- <https://security.gentoo.org/glsa/202309-06>
- <https://www.kb.cert.org/vuls/id/119678>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-44142) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_