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Summary: <\/b>Implementation bug in the go client may lead to invalid state<\/span><\/p>\n Affected client versions: <\/b>Latest (unpatched) versions of Go client; v1.1.2, v1.0.4 tags and develop, master branches before September 9.<\/p>\n Likelihood: Low<\/b><\/p>\n Severity: High<\/b><\/p>\n Impact: High<\/b><\/p>\n Details:<\/b> Go ethereum client does not correctly restore state of execution environment when a transaction goes out-of-gas if – within the same block – a contract was suicided. This would result in an invalid copy operation of the state object; flagging the contract as <\/span>not deleted<\/b>. This operation would cause a consensus issue between the other implementations.<\/span><\/p>\n \u00a0<\/p>\n Effects on expected chain reorganisation depth: <\/b>none<\/span><\/p>\n Remedial action taken by Ethereum<\/b>: Provision of hotfixes as below. <\/span><\/p>\n Proposed temporary workaround:<\/b> Use Python or C++ client<\/span><\/p>\n \u00a0<\/p>\n If using the PPA: <\/span>sudo apt-get update<\/span><\/span> then <\/span>sudo apt-get upgrade<\/span><\/span><\/p>\n If using brew: <\/span>brew update<\/span><\/span> then <\/span>brew reinstall ethereum<\/span><\/span><\/p>\n If using a windows binary: download the updated binary from https:\/\/github.com\/ethereum\/go-ethereum\/releases\/tag\/v1.1.3<\/a><\/span><\/span><\/p>\n \u00a0<\/p>\n Master branch commit: https:\/\/github.com\/ethereum\/go-ethereum\/commit\/9ebe787d3afe35902a639bf7c1fd68d1e591622a<\/a><\/span><\/span><\/p>\n \u00a0<\/p>\n