---
cve: "CVE-2017-3226"
severity: "MEDIUM"
cvss: 6.4
epss: "3%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2018-07-24 15:29:00"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T18:55:46+02:00"
---

# CVE-2017-3226

> 6.4 MEDIUM

## Beschreibung

Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. Devices that make use of Das U-Boot's AES-CBC encryption feature using environment encryption (i.e., setting the configuration parameter CONFIG_ENV_AES=y) read environment variables from disk as the encrypted disk image is processed. An attacker with physical access to the device can manipulate the encrypted environment data to include a crafted two-byte sequence which triggers an error in environment variable parsing. This error condition is improperly handled by Das U-Boot, resulting in an immediate process termination with a debugging message.

## CVSS-Vektor

```
CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Physisch | good |
| AC Komplexität | Hoch | good |
| 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)

- c98ac3487e413c71e5d36322ef3324b21c6f60f9 (Commit)

## Referenzen

- <http://www.securityfocus.com/bid/100675>
- <https://www.kb.cert.org/vuls/id/166743>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2017-3226) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_