Vulnerabilites related to Das - U-Boot
cve-2017-3226
Vulnerability from cvelistv5
Published
2018-07-24 15:00
Modified
2024-08-05 14:16
Severity ?
EPSS score ?
Summary
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.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/100675 | vdb-entry, x_refsource_BID | |
| https://www.kb.cert.org/vuls/id/166743 | third-party-advisory, x_refsource_CERT-VN |
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cve-2017-3225
Vulnerability from cvelistv5
Published
2018-07-24 15:00
Modified
2024-08-05 14:16
Severity ?
EPSS score ?
Summary
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.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/100675 | vdb-entry, x_refsource_BID | |
| https://www.kb.cert.org/vuls/id/166743 | third-party-advisory, x_refsource_CERT-VN |
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