Security Alert – [Previous security patch can lead to invalid state root on Go clients with a specific transaction sequence – Fixed. Please update.]

Abstract: Implementation bug within the go shopper might result in invalid state

Affected shopper variations: Newest (unpatched) variations of Go shopper; v1.1.2, v1.0.4 tags and develop, grasp branches earlier than September 9.

Chance: Low

Severity: Excessive

Influence: Excessive

Particulars: Go ethereum shopper doesn’t appropriately restore state of execution atmosphere when a transaction goes out-of-gas if – inside the identical block – a contract was suicided. This might lead to an invalid copy operation of the state object; flagging the contract as not deleted. This operation would trigger a consensus concern between the opposite implementations.

Results on anticipated chain reorganisation depth: none

Remedial motion taken by Ethereum: Provision of hotfixes as under.

Proposed momentary workaround: Use Python or C++ shopper

If utilizing the PPA: sudo apt-get replace then sudo apt-get improve

If utilizing brew: brew replace then brew reinstall ethereum

If utilizing a home windows binary: obtain the up to date binary from https://github.com/ethereum/go-ethereum/releases/tag/v1.1.3

Grasp department commit: https://github.com/ethereum/go-ethereum/commit/9ebe787d3afe35902a639bf7c1fd68d1e591622a

For those who’re constructing from supply: git fetch origin && git checkout origin/grasp adopted by a make geth