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.
References
Link | Resource |
---|---|
https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g | Vendor Advisory |
Configurations
History
No history.
Information
Published : 2024-01-16 22:15
Updated : 2024-01-24 18:13
NVD link : CVE-2024-22192
Mitre link : CVE-2024-22192
CVE.ORG link : CVE-2024-22192
JSON object : View
Products Affected
hyperledger
- ursa
CWE
CWE-327
Use of a Broken or Risky Cryptographic Algorithm