---
cve: "CVE-2022-3640"
severity: "MEDIUM"
cvss: 5.5
epss: "1.1%"
vendor: "Linux"
kev: false
exploited: false
published: "2022-10-21 15:15:09"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T08:09:40+02:00"
---

# CVE-2022-3640

> 5.5 MEDIUM

## Beschreibung

A vulnerability, which was classified as critical, was found in Linux Kernel. Affected is the function l2cap_conn_del of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211944.

## CVSS-Vektor

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

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

## Referenzen

- <https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=42cf46dea905a80f6de218e837ba4d4cc33d6979>
- <https://vuldb.com/?id.211944>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD7VWUT7YAU4CJ247IF44NGVOAODAJGC/>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DGOIRR72OAFE53XZRUDZDP7INGLIC3E3/>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG2UPX3MQ7RKRJEUMGEH2TLPKZJCBU5C/>
- <https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html>
- <https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2022-3640) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_