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 | |
---|---|---|---|
cret@cert.org | http://www.securityfocus.com/bid/100675 | Third Party Advisory, VDB Entry | |
cret@cert.org | https://www.kb.cert.org/vuls/id/166743 | Third Party Advisory, US Government Resource | |
af854a3a-2127-422b-91ae-364da2661108 | http://www.securityfocus.com/bid/100675 | Third Party Advisory, VDB Entry | |
af854a3a-2127-422b-91ae-364da2661108 | https://www.kb.cert.org/vuls/id/166743 | Third Party Advisory, US Government Resource |
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Devices that make use of Das U-Boot\u0027s 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. 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Devices that make use of Das U-Boot\u0027s 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. 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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.