O Ethereumthe second largest cryptocurrency on the market, experienced technical problems this Sunday (21) after the customer Hider present a bug. With an 8% share, this client is the second largest on Ethereum at 84%, behind only Geth, created by ETH developers.
On Github, developers pointed out that the issue affected versions 1.25, 1.25.1, and 1.26 of Nethermind. “The execution client has stopped processing blocks (perhaps affecting all Nethermind client users)”described one user.
In the presented log it is possible to see that the client considered all blocks as “invalid”, the same applies to the chain. In other words, whoever was using Nethermind was not processing any blocks.
Bug in Ethereum client shows the good and bad side of Ethereum
Since Ethereum has more than one client, the Nethermind bug did not have a major impact on the network. On the contrary, no user should have noticed the problem except those using the client.


However, the bug gave way to new warnings about Ethereum. In short, the problem could have been much worse if the bug had occurred on Geth, which dominates the network.
In short, a bug in Geth could lead to the splitting of the network. While the chain A would only be used by these customers, the chain B would include all other customers.
“Case 2 [bug no Geth] it will be much worse if the buggy client has more than 2/3 of the stake, in which case the invalid chain would be terminated”said Dankrad Feist in 2022.
As a result, strikers who used Geth would be punished and lose money. In the title of his article, the Ethereum developer warns: “Use Dominant Client at your own risk!”


Moreover, Ethereum users themselves would face problems as the network would be split in two, which could lead to fake transactions and also decentralized broker scams.
So this is why there are so many warnings for people to leave the Geth. Perhaps now with the Nethermind bug this migration will be accelerated as theory is no longer theory.
In an update on the incident, Nethermind developers stated that an update is now available and the bug has already been fixed.
“We are relaunching the experimental version. This release includes a fix for the consensus issue introduced in Nethermind v1.23.0.”the developers said this morning. “The full post-mortem is being prepared and will be shared shortly.”
We are re-releasing the experimental release.
This release includes a fix for the consensus issue introduced in Nethermind v1.23.0.
❌ Resync IS NOT required and there is NO NEED to resync your consensus client.
✔️ Consensus client restart IS required.
👉Full… pic.twitter.com/rycTuUtxrX
— Nethermind (@NethermindEth) January 22, 2024
Ethereum drops more than Bitcoin this Monday
Ethereum surpassed $2,700 earlier this month, perhaps because some traders thought ETH was in for a rally following the arrival of its own ETFs. However, the market cooled and ETH has fallen 12.7% since then.
ETH is trading at $2,372 and is down 4.1% this Monday (22). Although it follows Bitcoin, which is also declining, it is worth noting that BTC was only down 2.3% over the same period.
The Nethermind client bug may have even affected traders. However, the Ethereum Foundation also sold about 700 ETH (R$8.3 million) this Monday, the amount was converted into the stablecoin Dai (DAI) and the action may have affected the price of ETH.


Source: Live Coins

Barry Siefert is an accomplished journalist and author at The Nation View. He is known for his expertise in the field of cryptocurrency, and has written extensively on the topic. With a background in finance and economics, Barry has a deep understanding of the underlying technology and market forces that drive the crypto industry.