---
cve: "CVE-2023-2804"
severity: "MEDIUM"
cvss: 6.5
epss: "1.2%"
vendor: "n/a"
kev: false
exploited: false
published: "2023-05-25 22:15:09"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T06:15:15+02:00"
---

# CVE-2023-2804

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

A heap-based buffer overflow issue was discovered in libjpeg-turbo in h2v2_merged_upsample_internal() function of jdmrgext.c file. The vulnerability can only be exploited with 12-bit data precision for which the range of the sample data type exceeds the valid sample range, hence, an attacker could craft a 12-bit lossless JPEG image that contains out-of-range 12-bit samples. An application attempting to decompress such image using merged upsampling would lead to segmentation fault or buffer overflows, causing an application to crash.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 9f756bc67a84d4566bf74a0c2432aa55da404021 (Commit)

## Referenzen

- <https://github.com/libjpeg-turbo/libjpeg-turbo/issues/675>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2208447>
- <https://access.redhat.com/security/cve/CVE-2023-2804>
- <https://github.com/libjpeg-turbo/libjpeg-turbo/commit/9f756bc67a84d4566bf74a0c2432aa55da404021>
- <https://github.com/libjpeg-turbo/libjpeg-turbo/issues/668#issuecomment-1492586118>
- <https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01006.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-2804) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_