---
cve: "CVE-2023-54286"
severity: "HIGH"
cvss: 7.6
epss: "26%"
vendor: "Linux"
kev: false
exploited: false
published: "2025-12-30 13:16:17"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-08-31T14:28:01+02:00"
---

# CVE-2023-54286

> 7.6 HIGH

## Beschreibung

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

wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace

A received TKIP key may be up to 32 bytes because it may contain
MIC rx/tx keys too. These are not used by iwl and copying these
over overflows the iwl_keyinfo.key field.

Add a check to not copy more data to iwl_keyinfo.key then will fit.

This fixes backtraces like this one:

 memcpy: detected field-spanning write (size 32) of single field "sta_cmd.key.key" at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 (size 16)
 WARNING: CPU: 1 PID: 946 at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 iwlagn_send_sta_key+0x375/0x390 [iwldvm]
 
 Hardware name: Dell Inc. Latitude E6430/0H3MT5, BIOS A21 05/08/2017
 RIP: 0010:iwlagn_send_sta_key+0x375/0x390 [iwldvm]
 
 Call Trace:
  
  iwl_set_dynamic_key+0x1f0/0x220 [iwldvm]
  iwlagn_mac_set_key+0x1e4/0x280 [iwldvm]
  drv_set_key+0xa4/0x1b0 [mac80211]
  ieee80211_key_enable_hw_accel+0xa8/0x2d0 [mac80211]
  ieee80211_key_replace+0x22d/0x8e0 [mac80211]

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- Kernel ≥ 4.14.316
- Kernel ≥ 4.19.284
- Kernel ≥ 5.4.244
- Kernel ≥ 5.10.181
- Kernel ≥ 5.15.113
- Kernel ≥ 6.1.30
- Kernel ≥ 6.3.4

## Referenzen

- <https://git.kernel.org/stable/c/76b5ea43ad2fb4f726ddfaff839430a706e7d7c2>
- <https://git.kernel.org/stable/c/3ed3c1c2fc3482b72e755820261779cd2e2c5a3e>
- <https://git.kernel.org/stable/c/fa57021262e998e2229d6383b1081638df2fe238>
- <https://git.kernel.org/stable/c/91ad1ab3cc7e981cb6d6ee100686baed64e1277e>
- <https://git.kernel.org/stable/c/87940e4030e4705e1f3fd2bbb1854eae8308314b>
- <https://git.kernel.org/stable/c/57189c885149825be8eb8c3524b5af017fdeb941>
- <https://git.kernel.org/stable/c/6cd644f66b43709816561d63e0173cb0c7aab159>
- <https://git.kernel.org/stable/c/ef16799640865f937719f0771c93be5dca18adc6>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-54286) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_