CVE-2017-3225: Das U-Boot's AES-CBC encryption feature uses a zero (0) initialization vector that may allow attacks against the underlying cryptographic implementation and allow an attacker to decrypt the data
First published: Tue Jul 24 2018(Updated: )
Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. For devices utilizing this environment encryption mode, U-Boot's use of a zero initialization vector may allow attacks against the underlying cryptographic implementation and allow an attacker to decrypt the data. Das U-Boot's AES-CBC encryption feature uses a zero (0) initialization vector. This allows an attacker to perform dictionary attacks on encrypted data produced by Das U-Boot to learn information about the encrypted data.
Credit: cret@cert.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| DENX U-Boot | <2017.09 |
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Frequently Asked Questions
What is CVE-2017-3225?
CVE-2017-3225 is a vulnerability in Das U-Boot bootloader that allows an attacker to decrypt the encrypted configuration file due to the use of a zero initialization vector.
What is the severity of CVE-2017-3225?
The severity of CVE-2017-3225 is medium with a CVSS score of 4.6.
What software versions are affected by CVE-2017-3225?
Devices utilizing Das U-Boot bootloader with versions up to and excluding 2017.09 are affected by CVE-2017-3225.
How does CVE-2017-3225 impact the cryptographic implementation?
CVE-2017-3225 allows attacks against the underlying cryptographic implementation used by Das U-Boot bootloader.
Are there any references for CVE-2017-3225?
For more information about CVE-2017-3225, you can refer to the following resources: http://www.securityfocus.com/bid/100675 and https://www.kb.cert.org/vuls/id/166743.
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