Exposure of Sensitive Information to an Unauthorized Actor Affecting github.com/consensys/gnark/internal/hints package, versions <0.11.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMCONSENSYSGNARKINTERNALHINTS-7922515
- published6 Sept 2024
- disclosed6 Sept 2024
- creditmaltezellic
Introduced: 6 Sep 2024
CVE-2024-45040 Â (opens in a new tab)How to fix?
Upgrade github.com/consensys/gnark/internal/hints to version 0.11.0 or higher.
Overview
Affected versions of this package are vulnerable to Exposure of Sensitive Information to an Unauthorized Actor due to the implementation of commitments in Groth16 proofs. An attacker can deduce the actual values of small witness variables by enumerating all possible choices. This vulnerability does not affect the completeness or soundness of the proofs.
Workaround
This vulnerability can be mitigated by manually committing to a randomized value at proving time to mask the rest of the values which were committed.