---
cve: "CVE-2023-52768"
severity: "HIGH"
cvss: 7.8
epss: "0.2%"
vendor: "Linux"
kev: false
exploited: false
published: "2024-05-21 16:15:15"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T11:00:37+02:00"
---

# CVE-2023-52768

> 7.8 HIGH

## Beschreibung

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

wifi: wilc1000: use vmm_table as array in wilc struct

Enabling KASAN and running some iperf tests raises some memory issues with
vmm_table:

BUG: KASAN: slab-out-of-bounds in wilc_wlan_handle_txq+0x6ac/0xdb4
Write of size 4 at addr c3a61540 by task wlan0-tx/95

KASAN detects that we are writing data beyond range allocated to vmm_table.
There is indeed a mismatch between the size passed to allocator in
wilc_wlan_init, and the range of possible indexes used later: allocation
size is missing a multiplication by sizeof(u32)

## 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)

- Kernel ≥ 5.15.140
- Kernel ≥ 6.1.64
- Kernel ≥ 6.5.13
- Kernel ≥ 6.6.3

## Referenzen

- <https://git.kernel.org/stable/c/541b3757fd443a68ed8d25968eae511a8275e7c8>
- <https://git.kernel.org/stable/c/4b0d6ddb6466d10df878a7787f175a0e4adc3e27>
- <https://git.kernel.org/stable/c/6aaf7cd8bdfe245d3c9a8b48fe70c2011965948e>
- <https://git.kernel.org/stable/c/3ce1c2c3999b232258f7aabab311d47dda75605c>
- <https://git.kernel.org/stable/c/05ac1a198a63ad66bf5ae8b7321407c102d40ef3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-52768) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_