CVE-2024-21670 (GCVE-0-2024-21670)
Vulnerability from cvelistv5
Published
2024-01-16 21:44
Modified
2024-08-01 22:27
CWE
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Summary
Ursa is a cryptographic library for use with blockchains. The revocation schema that is part of the Ursa CL-Signatures implementations has a flaw that could impact the privacy guarantees defined by the AnonCreds verifiable credential model, allowing a malicious holder of a revoked credential to generate a valid Non-Revocation Proof for that credential as part of an AnonCreds presentation. A verifier may verify a credential from a holder as being "not revoked" when in fact, the holder's credential has been revoked. Ursa has moved to end-of-life status and no fix is expected.
Impacted products
Show details on NVD website


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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