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The state transition and consensus issue in the geth client causes a panic (crash) when processing a (valid) block with a specific set of transactions, which can cause overall network instability if the block is accepted and relayed by unaffected clients and thus causes a block the service. This may happen in a block containing transactions that commit suicide to the block reward address.
Affected configurations: A problem has been reported for Geth. While investigating the issue, related issues were discovered and patched in pyethereum, so pyethapp was also affected. C++ clients are not affected.
Probability: a little
Danger: high
complication: high
impact: Network instability and DoS
details: A block containing a specific set of transactions that includes one or more suicidal calls, although valid, causes a panic crash in the go-ethereum client and a crash in pyethereum. Additional details may be posted when available.
Effects on the expected depth of chain reorganization: no one.
Remedial action taken by Ethereum: Provide fixes as follows.
Proposed temporary solution: Switch to an unaffected client such as eth (C++).
Repair:Upgrading geoth and pyethereum client software.
Go Ethereum (GIT):
Please note that the current stable version of geth is now 1.1.1; If you are on version 1.0 and use a package manager like apt-get or homebrew, the client will be upgraded.
If using PPA: sudo apt-get-update then sudo apt-get-promotion
If using syrup: Update the drink then Drink reinstall ethereum
If using binary Windows: Download the Binary update.
If you are building from source: Pull gate Followed by Make a geth (Please use master branch commit 8f09242d7f527972acb1a8b2a61c9f55000e955d)
The correct version of this update on Ubuntu and OSX is Geth/v1.1.1.8f09242d
Purulent:
pyethapp users will have to reinstall
> Install pip pyethapp –force-reinstall
