---
cve: "CVE-2024-40999"
severity: "CRITICAL"
cvss: 9.8
epss: "53%"
vendor: "Linux"
kev: false
exploited: false
published: "2024-07-12 13:15:20"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T11:11:36+02:00"
---

# CVE-2024-40999

> 9.8 CRITICAL

## Beschreibung

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

net: ena: Add validation for completion descriptors consistency

Validate that `first` flag is set only for the first
descriptor in multi-buffer packets.
In case of an invalid descriptor, a reset will occur.
A new reset reason for RX data corruption has been added.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- Kernel ≥ 6.9.7

## Referenzen

- <https://git.kernel.org/stable/c/42146ee5286f16f1674a84f7c274dcca65c6ff2e>
- <https://git.kernel.org/stable/c/b37b98a3a0c1198bafe8c2d9ce0bc845b4e7a9a7>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-40999) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_