Information Exposure Affecting armmbed/mbed-crypto package, versions [,2.0.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.89% (83rd percentile)

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  • Snyk IDSNYK-UNMANAGED-ARMMBEDMBEDCRYPTO-2366032
  • published26 Jan 2022
  • disclosed26 Sept 2019
  • creditUnknown

Introduced: 26 Sep 2019

CVE-2019-16910  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade armmbed/mbed-crypto to version 2.0.0 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure. Arm Mbed TLS before 2.19.0 and Arm Mbed Crypto before 2.0.0, when deterministic ECDSA is enabled, use an RNG with insufficient entropy for blinding, which might allow an attacker to recover a private key via side-channel attacks if a victim signs the same message many times. (For Mbed TLS, the fix is also available in versions 2.7.12 and 2.16.3.)

CVSS Scores

version 3.1