CVE-2024-22192

2024-01-1622:15:46

CWE-327

[email protected]

web.nvd.nist.gov

ursa

cryptographic library

privacy

anoncreds

verifiable credential

flaw

cve-2024-22192

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

37.2%

JSON

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.

Affected configurations

Vulners

NVD

Node

hyperledger-archivesursaRange≤0.3.7

CPENameOperatorVersion
hyperledger:ursahyperledger ursaeq0.1.0

CPE	Name	Operator	Version
hyperledger:ursa	hyperledger ursa	eq	0.1.0

CNA Affected

[
  {
    "vendor": "hyperledger-archives",
    "product": "ursa",
    "versions": [
      {
        "version": "<= 0.3.7",
        "status": "affected"
      }
    ]
  }
]