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Transaction validity oversight in pallet-ethereum

Low
sorpaas published GHSA-hw4v-5x4h-c3xm Sep 1, 2021

Package

cargo Frontier (Rust)

Affected versions

<= commit 4b6c808

Patched versions

>= commit 0b962f2

Description

Impact

A bug in pallet-ethereum can cause invalid transactions to be included in the Ethereum block state in pallet-ethereum due to not validating the input data size. Any invalid transactions included this way have no possibility to alter the internal Ethereum or Substrate state. The transaction will appear to have be included, but is of no effect as it is rejected by the EVM engine. The impact is further limited by Substrate extrinsic size constraints.

Patches

Patches are applied in PR #465.

Workarounds

None.

References

Patch PR: #465

For more information

If you have any questions or comments about this advisory:

Severity

Low

CVE ID

CVE-2021-39193

Weaknesses

No CWEs