Optimism Announced That It Has A Critical Bug On February 10

Optimism, an Ethereum scaling project, said on February 10 that it has fixed a “critical bug” earlier this month.

The team was alerted by Jay Freeman to the existence of a critical bug in Geth fork of the platform. He indicated that it was possible to create ETH on Optimism by repeatedly triggering the SELFDESTRUCT opcode on a contract that held an ETH balance.

Analysis of its chain history showed that the bug was not exploited (the bug seems to have been accidentally triggered on one occasion by an Etherscan employee but no usable excess ETH was generated). A fix for the issue was tested and deployed to the platform’s Kovan and Mainnet networks (including all infrastructure providers) within hours of confirmation.

A bounty of $2,000,042 was awarded to developer Jay Freeman.

This project team is focused on the development of optimistic rollups, which operate at the so-called second layer and aggregate transactions outside of the Ethereum blockchain, where transactions are ultimately settled, with the goal of reducing the cost of transacting on the network. But as today’s disclosure demonstrates, layer-two protocols are subject to potentially risky security issues.

A number of optimistic rollups are in operation today, encompassing more than $5 billion in total value locked (referring to the funds contained therein).

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optimistic rollups, which operate at the so-called second layer and aggregate transactions outside of the Ethereum blockchain, where transactions are