cve/2017/CVE-2017-3226.md

### [CVE-2017-3226](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3226)
![](https://img.shields.io/static/v1?label=Product&message=U-Boot&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=2017.092017.09%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-329&color=brighgreen)

### Description

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.

### POC

#### Reference
- https://www.kb.cert.org/vuls/id/166743

#### Github
No PoCs found on GitHub currently.