---
cve: "CVE-2024-44986"
severity: "HIGH"
cvss: 8.1
epss: "0.7%"
vendor: "Linux"
kev: false
exploited: false
published: "2024-09-04 20:15:07"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T12:28:52+02:00"
---

# CVE-2024-44986

> 8.1 HIGH

## Beschreibung

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

ipv6: fix possible UAF in ip6_finish_output2()

If skb_expand_head() returns NULL, skb has been freed
and associated dst/idev could also have been freed.

We need to hold rcu_read_lock() to make sure the dst and
associated idev are alive.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| 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 ≥ 5.15.166
- Kernel ≥ 6.1.107
- Kernel ≥ 6.6.48
- Kernel ≥ 6.10.7

## Referenzen

- <https://git.kernel.org/stable/c/e891b36de161fcd96f12ff83667473e5067b9037>
- <https://git.kernel.org/stable/c/3574d28caf9a09756ae87ad1ea096c6f47b6101e>
- <https://git.kernel.org/stable/c/6ab6bf731354a6fdbaa617d1ec194960db61cf3b>
- <https://git.kernel.org/stable/c/56efc253196751ece1fc535a5b582be127b0578a>
- <https://git.kernel.org/stable/c/da273b377ae0d9bd255281ed3c2adb228321687b>
- <https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-44986) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_