Vulnerability Information
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Vulnerability Title
Ursa CL-Signatures Revocation allows verifiers to generate unique identifiers for holders
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 Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Vulnerability Type
使用已被攻破或存在风险的密码学算法
Vulnerability Title
Hyperledger Ursa 加密问题漏洞
Vulnerability Description
Hyperledger Ursa是Hyperledger开源的一个与区块链一起使用的密码库。 Hyperledger Ursa 0.1.0版本存在加密问题漏洞，该漏洞源于Ursa CL-Signatures Revocation允许验证者为持有者生成唯一标识符，从而提供包含非撤销证明的可验证演示文稿。
CVSS Information
N/A
Vulnerability Type
N/A