CVE-2021-38194
highPriorität · verfolgen · 39EPSS 0.013 · 70. PerzentilEUUSEPSS · bewertet 2026-10-26
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.
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Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 7.5–9.8
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Advisories (2)
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- GHSA-qj3v-q2vj-4c8hCalculation error in ark-r1cs-std2021-08-25ghsa · osvUS
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.
- RUSTSEC-2021-0075Flaw in `FieldVar::mul_by_inverse` allows unsound R1CS constraint systems2021-07-08vendor · osvUS
Versions `0.2.0` to `0.3.0` of ark-r1cs-std did not enforce any constraints in the `FieldVar::mul_by_inverse` method, allowing a malicious prover to produce an unsound proof that passes all verifier checks. This method was used primarily in scalar multiplication for [`short_weierstrass::ProjectiveVar`](https://docs.rs/ark-r1cs-std/0.3.0/ark_r1cs_std/groups/curves/short_weierstrass/struct.ProjectiveVar.html). This bug was fixed in commit `47ddbaa`, and was released as part of version `0.3.1` on `crates.io`.
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Referenzen (6)
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- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/ark-r1cs-std/RUSTSEC-2021-0075.mdcnnvd
- https://rustsec.org/advisories/RUSTSEC-2021-0075.htmlcnnvd
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/ark-r1cs-std/RUSTSEC-2021-0075.mdenisa_euvd
- https://rustsec.org/advisories/RUSTSEC-2021-0075.htmlenisa_euvd
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/ark-r1cs-std/RUSTSEC-2021-0075.mdThird Party Advisorynvd
- https://rustsec.org/advisories/RUSTSEC-2021-0075.htmlExploitIssue TrackingPatchThird Party Advisorynvd
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