CVE-2024-22192 — MEDIUM (6.5)

Vulnerability Description

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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Hyperledger	Ursa	0.1.0

Related Weaknesses (CWE)

CWE-327

References

https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-Vendor Advisory
https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-Vendor Advisory

FAQ

What is CVE-2024-22192?

CVE-2024-22192 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 th...

How severe is CVE-2024-22192?

CVE-2024-22192 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2024-22192?

Check the references section above for vendor advisories and patch information. Affected products include: Hyperledger Ursa.