Vulnerability in Hyperledger Ursa
CVE-2024-22192
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.
Vulnerability class: POODLE (CVE-2014-3566)
EPSS: 0.003 (24.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Hyperledger Ursa — versions 0.1.0
- Hyperledger-archives Ursa — versions <= 0.3.7
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-22192?
- CVE-2024-22192 is a medium-severity vulnerability in Hyperledger Ursa, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 6.5/10. Published 2024-01-16.
- How severe is CVE-2024-22192?
- Medium severity. CVSS v3 base score is 6.5 out of 10.