Vigil@nce - Mbed TLS: information disclosure via ECDSA Signature Blinded Scalar Reduction
March 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerabilities-watch-and-alert
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora.
Severity: 1/4.
Consequences: data reading.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 19/02/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can bypass access restrictions to data via ECDSA
Signature Blinded Scalar Reduction of Mbed TLS, in order to obtain
sensitive information.
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