---
cve: "CVE-2023-52687"
severity: "CRITICAL"
cvss: 9.8
epss: "60%"
vendor: "Linux"
kev: false
exploited: false
published: "2024-05-17 15:15:19"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-14T01:26:25+02:00"
---

# CVE-2023-52687

> 9.8 CRITICAL

## Beschreibung

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

crypto: safexcel - Add error handling for dma_map_sg() calls

Macro dma_map_sg() may return 0 on error. This patch enables
checks in case of the macro failure and ensures unmapping of
previously mapped buffers with dma_unmap_sg().

Found by Linux Verification Center (linuxtesting.org) with static
analysis tool SVACE.

## CVSS-Vektor

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

## Patch verfügbar (OSV)

- Kernel ≥ 6.1.75
- Kernel ≥ 6.6.14
- Kernel ≥ 6.7.2

## Referenzen

- <https://git.kernel.org/stable/c/4c0ac81a172a69a7733290915276672787e904ec>
- <https://git.kernel.org/stable/c/8084b788c2fb1260f7d44c032d5124680b20d2b2>
- <https://git.kernel.org/stable/c/fc0b785802b856566df3ac943e38a072557001c4>
- <https://git.kernel.org/stable/c/87e02063d07708cac5bfe9fd3a6a242898758ac8>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-52687) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_