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CVE-2023-44378

gnark vulnerable to unsoundness in variable comparison/non-unique binary decomposition

概要

gnark vulnerable to unsoundness in variable comparison/non-unique binary decomposition

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

gnark is a zk-SNARK library that offers a high-level API to design circuits. Prior to version 0.9.0, for some in-circuit values, it is possible to construct two valid decomposition to bits. In addition to the canonical decomposition of a, for small values there exists a second decomposition for a+r (where r is the modulus the values are being reduced by). The second decomposition was possible due to overflowing the field where the values are defined. Upgrading to version 0.9.0 should fix the issue without needing to change the calls to value comparison methods.

出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

影響パッケージ

Go github.com/consensys/gnark
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.9.0"}]}]

参照URL

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