Insufficient Entropy Affecting blahaj package, versions <0.6.0
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- published18 Nov 2024
- disclosed16 Nov 2024
- creditCure53
Introduced: 16 Nov 2024
CVE NOT AVAILABLE CWE-331 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade blahaj to version 0.6.0 or higher.
Overview
Affected versions of this package are vulnerable to Insufficient Entropy via the random_polynomial function. An attacker can exclude an exponential number of values for each of the shared bytes until sufficiently few values remain for brute forcing by exploiting the bias in polynomial coefficient generation. This is only exploitable if the same secret is distributed multiple times.