Use of a Broken or Risky Cryptographic Algorithm Affecting ursa package, versions >=0.0.0


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.09% (27th percentile)

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  • Snyk IDSNYK-RUST-URSA-6168623
  • published17 Jan 2024
  • disclosed16 Jan 2024
  • creditUnknown

Introduced: 16 Jan 2024

CVE-2024-21670  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

Upgrade ursa to version or higher.

Overview

Affected versions of this package are vulnerable to Use of a Broken or Risky Cryptographic Algorithm due to a flaw in the revocation schema of the CL-Signatures implementations. An attacker can undermine the privacy guarantees of the AnonCreds verifiable credential model by generating a valid Non-Revocation Proof for a revoked credential. This could lead to a verifier incorrectly confirming a credential as 'not revoked' when it has, in fact, been revoked.

References

CVSS Base Scores

version 3.1