Hyperledger Archives Ursa vulnerabilities

2 vulnerabilities

Known vulnerabilities in Hyperledger Archives Ursa, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

8.1CVE-2024-21670Crates.Ioanoncreds-clsignatures+3
EPSS score
0.28%
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 A verifier may verify a credential from a holder as being "not revoked" when in fact, the holder's credential has been revoked.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.6.5CVE-2024-22192Crates.Ioanoncreds-clsignatures+3
EPSS score
0.32%
Ursa is a cryptographic library for use with blockchains. The revocation scheme 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. Notably, a malicious verifier may be able to generate a unique identifier for a holder providing a verifiable presentation that includes a Non-Revocation proof. The impact of the flaw is that a malicious verifier may be able to determine a unique identifier for a holder presenting a Non-Revocation proof. Ursa has moved to end-of-life status and no fix is expected.