---
cve: "CVE-2024-1086"
severity: "HIGH"
cvss: 7.8
epss: "28.1%"
vendor: "Linux"
kev: true
exploited: true
published: "2024-01-31 13:15:10"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T12:20:03+02:00"
---

# CVE-2024-1086

> 7.8 HIGH · ⚠️ CISA KEV (844 Tage) · 🔓 Exploited · 🧪 PoC

## Beschreibung

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.



The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT.



We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

## 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 |

## Patch verfügbar (OSV)

- e8f897f4afef0031fe618a8e94127a0934896aba (Commit)

## Referenzen

- <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f342de4e2f33e0e39165d8639387aa6c19dff660>
- <https://kernel.dance/f342de4e2f33e0e39165d8639387aa6c19dff660>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LSPIOMIJYTLZB6QKPQVVAYSUETUWKPF/>
- <https://github.com/Notselwyn/CVE-2024-1086>
- <https://news.ycombinator.com/item?id=39828424>
- <https://pwning.tech/nftables/>
- <http://www.openwall.com/lists/oss-security/2024/04/15/2>
- <http://www.openwall.com/lists/oss-security/2024/04/10/23>
- <http://www.openwall.com/lists/oss-security/2024/04/10/22>
- <http://www.openwall.com/lists/oss-security/2024/04/14/1>
- <http://www.openwall.com/lists/oss-security/2024/04/17/5>
- <https://security.netapp.com/advisory/ntap-20240614-0009/>
- <https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html>
- <https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-1086) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_