---
cve: "CVE-2023-52669"
severity: "HIGH"
cvss: 8.2
epss: "68%"
vendor: "Linux"
kev: false
exploited: false
published: "2024-05-17 14:01:57"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T10:04:41+02:00"
---

# CVE-2023-52669

> 8.2 HIGH

## Beschreibung

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

crypto: s390/aes - Fix buffer overread in CTR mode

When processing the last block, the s390 ctr code will always read
a whole block, even if there isn't a whole block of data left.  Fix
this by using the actual length left and copy it into a buffer first
for processing.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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 | Gering | warn |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- Kernel ≥ 5.10.210
- Kernel ≥ 5.15.149
- Kernel ≥ 6.1.76
- Kernel ≥ 6.6.15
- Kernel ≥ 6.7.3

## Referenzen

- <https://git.kernel.org/stable/c/cd51e26a3b89706beec64f2d8296cfb1c34e0c79>
- <https://git.kernel.org/stable/c/a7f580cdb42ec3d53bbb7c4e4335a98423703285>
- <https://git.kernel.org/stable/c/dbc9a791a70ea47be9f2acf251700fe254a2ab23>
- <https://git.kernel.org/stable/c/d68ac38895e84446848b7647ab9458d54cacba3e>
- <https://git.kernel.org/stable/c/e78f1a43e72daf77705ad5b9946de66fc708b874>
- <https://git.kernel.org/stable/c/d07f951903fa9922c375b8ab1ce81b18a0034e3b>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-52669) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_