CVE-2022-31111

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Summary

CVECVE-2022-31111
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-07-06 18:15:00 UTC
Updated2022-07-14 14:18:00 UTC
DescriptionFrontier is Substrate's Ethereum compatibility layer. In affected versions the truncation done when converting between EVM balance type and Substrate balance type was incorrectly implemented. This leads to possible discrepancy between appeared EVM transfer value and actual Substrate value transferred. It is recommended that an emergency upgrade to be planned and EVM execution temporarily paused in the mean time. The issue is patched in Frontier master branch commit fed5e0a9577c10bea021721e8c2c5c378e16bf66 and polkadot-v0.9.22 branch commit e3e427fa2e5d1200a784679f8015d4774cedc934. This vulnerability affects only EVM internal states, but not Substrate balance states or node. You can temporarily pause EVM execution (by setting up a Substrate `CallFilter` that disables `pallet-evm` and `pallet-ethereum` calls before the patch can be applied.

Risk And Classification

Problem Types: CWE-670

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Parity Frontier - All All All

References

ReferenceSourceLinkTags
Limit number of iterations in genesis nonce building (#753) · paritytech/frontier@e3e427f · GitHub MISC github.com
Discrepency between appeared EVM transfer value and actual value due to incorrect truncation · Advisory · paritytech/frontier · GitHub CONFIRM github.com
Limit number of iterations in genesis nonce building (#753) · paritytech/frontier@fed5e0a · GitHub MISC github.com
Fix incorrect truncation of low_u128/low_u64 by sorpaas · Pull Request #753 · paritytech/frontier · GitHub MISC github.com
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