CVE-2022-36008: Message length overflow in frontier

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-08-19 · updated 2026-06-17
Weakness: CWE-190

Description

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 different reversion exit reasons and you used RPC for this. There are currently no known workarounds.

Affected products

paritytech frontier: all versions

References

https://github.com/paritytech/frontier/commit/fff8cc43b7756ce3979a38fc473f38e6e24ac451
https://github.com/paritytech/frontier/pull/820
https://github.com/paritytech/frontier/security/advisories/GHSA-mjvm-mhgc-q4gp
https://github.com/paritytech/frontier/commit/fff8cc43b7756ce3979a38fc473f38e6e24ac451
https://github.com/paritytech/frontier/pull/820
https://github.com/paritytech/frontier/security/advisories/GHSA-mjvm-mhgc-q4gp

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