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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXFqM3YtcTJ2ai00Yzho

Calculation error in ark-r1cs-std

An issue was discovered in the ark-r1cs-std crate before 0.3.1 for Rust. It does not enforce any constraints in the FieldVar::mul_by_inverse method. Thus, a prover can produce a proof that is unsound but is nonetheless verified.

Permalink: https://github.com/advisories/GHSA-qj3v-q2vj-4c8h
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXFqM3YtcTJ2ai00Yzho
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 2 years ago
Updated: about 1 year ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-qj3v-q2vj-4c8h, CVE-2021-38194
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-38194
• https://github.com/arkworks-rs/r1cs-std/pull/70
• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/ark-r1cs-std/RUSTSEC-2021-0075.md
• https://rustsec.org/advisories/RUSTSEC-2021-0075.html
• https://github.com/arkworks-rs/r1cs-std/commit/47ddbaa411afe7c499311a248a38135e5a192b67
• https://github.com/advisories/GHSA-qj3v-q2vj-4c8h

Repository: https://github.com/arkworks-rs/r1cs-std
Blast Radius: 21.8

Affected Packages