CVSS: 6.4EPSS: 0%CPEs: 1EXPL: 0CVE-2017-3226 – Das U-Boot's AES-CBC encryption feature improperly handles an error condition and may allow attacks against the underlying cryptographic implementation and allow an attacker to decrypt the data
https://notcve.org/view.php?id=CVE-2017-3226
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. Das U-Boot es un bootloader de dispositivos que puede leer su configuración desde un archivo cifrado por AES. • http://www.securityfocus.com/bid/100675 https://www.kb.cert.org/vuls/id/166743 • CWE-310: Cryptographic Issues CWE-329: Generation of Predictable IV with CBC Mode •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2018-1000205
https://notcve.org/view.php?id=CVE-2018-1000205
U-Boot contains a CWE-20: Improper Input Validation vulnerability in Verified boot signature validation that can result in Bypass verified boot. This attack appear to be exploitable via Specially crafted FIT image and special device memory functionality. U-Boot contiene una vulnerabilidad CWE-20: validación de entradas incorrecta en la validación de firma de arranque verificada que puede resultar en un arranque con la verificación omitida. Este ataque parece ser explotable mediante una imagen FIT especialmente manipulada y una funcionalidad especial de la memoria del dispositivo. • https://lists.denx.de/pipermail/u-boot/2018-June/330454.html https://lists.denx.de/pipermail/u-boot/2018-June/330898.html • CWE-20: Improper Input Validation •