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.
References (3)
Core 3
Core References
Issue Tracking, Third Party Advisory x_refsource_confirm
https://github.com/paritytech/frontier/security/advisories/GHSA-mjvm-mhgc-q4gp
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/paritytech/frontier/pull/820
Patch, Third Party Advisory x_refsource_misc
https://github.com/paritytech/frontier/commit/fff8cc43b7756ce3979a38fc473f38e6e24ac451
Scores
CVSS v3
7.1
EPSS
0.0046
EPSS Percentile
64.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-190
Status
published
Products (2)
crates.io/fc-rpc
0crates.io
parity/frontier
Published
Aug 19, 2022
Tracked Since
Feb 18, 2026