ID CVE-2022-21685
Summary Frontier is Substrate's Ethereum compatibility layer. Prior to commit number `8a93fdc6c9f4eb1d2f2a11b7ff1d12d70bf5a664`, a bug in Frontier's MODEXP precompile implementation can cause an integer underflow in certain conditions. This will cause a node crash for debug builds. For release builds (and production WebAssembly binaries), the impact is limited as it can only cause a normal EVM out-of-gas. Users who do not use MODEXP precompile in their runtime are not impacted. A patch is available in pull request #549.
References
Vulnerable Configurations
CVSS
Base: None
Impact:
Exploitability:
Access
VectorComplexityAuthentication
Impact
ConfidentialityIntegrityAvailability
Last major update 14-01-2022 - 17:59
Published 14-01-2022 - 17:15
Last modified 14-01-2022 - 17:59
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