---
cve: "CVE-2020-6851"
severity: "HIGH"
cvss: 7.5
epss: "21.9%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2020-01-13 06:15:10"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T08:10:06+02:00"
---

# CVE-2020-6851

> 7.5 HIGH

## Beschreibung

OpenJPEG through 2.3.1 has a heap-based buffer overflow in opj_t1_clbl_decode_processor in openjp2/t1.c because of lack of opj_j2k_update_image_dimensions validation.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://access.redhat.com/errata/RHSA-2020:0262>
- <https://access.redhat.com/errata/RHSA-2020:0274>
- <https://access.redhat.com/errata/RHSA-2020:0296>
- <https://github.com/uclouvain/openjpeg/issues/1228>
- <https://lists.debian.org/debian-lts-announce/2020/01/msg00025.html>
- <https://lists.debian.org/debian-lts-announce/2020/07/msg00008.html>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LACIIDDCKZJEPKTTFILSOSBQL7L3FC6V/>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XBRMI2D3XPVWKE3V52KRBW7BJVLS5LD3/>
- <https://www.debian.org/security/2021/dsa-4882>
- <https://www.oracle.com/security-alerts/cpujul2020.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-6851) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_