CVE-2021-38194

Public Exploit

Description

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.

9.8

CVSS

Severity: Critical

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.36%

Third-Party Advisory githubusercontent.com Third-Party Advisory rustsec.org

Affected: n/a n/a

References

Link	Tags
https://rustsec.org/advisories/RUSTSEC-2021-0075.html	patch exploit third party advisory issue tracking
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/ark-r1cs-std/RUSTSEC-2021-0075.md	third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-38194?: CVE-2021-38194 has been scored as a critical severity vulnerability.
How to fix CVE-2021-38194?: To fix CVE-2021-38194, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-38194 being actively exploited in the wild?: It is possible that CVE-2021-38194 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.