CVE-2022-36008 — Frontier is Substrate's Ethereum compatibility layer

Frontier is Substrate's Ethereum compatibility layer. A security issue was discovered affecting parsing of the RPC result of the exit reason in case of EVM reversion. In release build, this would cause the exit reason being incorrectly parsed and returned by RPC. In debug bu

01What is this vulnerability?

Frontier is Substrate's Ethereum compatibility layer. A security issue was discovered affecting parsing of the RPC result of the exit reason in case of EVM reversion. In release build, this would cause the exit reason being incorrectly parsed and returned by RPC. In debug build, this would cause an overflow panic. No action is needed unless you have a bridge node that needs to distinguish…

02Affected products

Vendor	Product	Versions
paritytech	frontier	< commit fff8cc43b7756ce3979a38fc473f38e6e24ac451

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-08-19T20:25:10.000Z
• Last modified: 2025-04-23T17:48:19.789Z

09References

• github.com — https://github.com/paritytech/frontier/security/advisories/GHSA-mjvm-mhgc-q4gp
• github.com — https://github.com/paritytech/frontier/pull/820
• github.com — https://github.com/paritytech/frontier/commit/fff8cc43b7756ce3979a38fc473f38e6e2…