tiny-secp256k1 vulnerable to private key extraction when signing a malicious JSON-stringifyable message in bundled environment

tiny-secp256k1 is a tiny secp256k1 native/JS wrapper. Prior to version 1.1.7, a private key can be extracted on signing a malicious JSON-stringifiable object, when global Buffer is the buffer package. This affects only environments where require('buffer') is the NPM buffer package. The Buffer.isBuffer check can be bypassed, resulting in k reuse for different messages, leading to private key extraction over a single invalid message (and a second one for which any message/signature could be taken, e.g. previously known valid one). This issue has been patched in version 1.1.7.

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不充分的凭证保护机制

tiny-secp256k1 安全漏洞

tiny-secp256k1是bitcoinjs开源的一个包装器。 tiny-secp256k1 1.1.7之前版本存在安全漏洞，该漏洞源于签名恶意JSON可字符串化对象时可能泄露私钥，可能导致私钥提取。

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