The discovery of a denial-of-service (DoS) attack vulnerability led the developers of ethereum's Geth software to release a new version just days before the Byzantium hard fork.
On finding the bug, the team behind ethereum's most popular client published a new software release, yet data from blockchain analytics site Ether Nodes shows a relatively low rate – only 1.9 percent of Geth nodes – of adoption at press time.
With Geth comprising about 75 percent of all ethereum nodes, the vulnerability could leave nodes running the previous Byzantium-compatible release more susceptible to DoS attacks after the hard fork.
Explained by ethereum developer Casey Detrio on Reddit, the vulnerability stems from an oversight in one of the new Byzantium features. The risk is that this bug could be exploited by an attacker who wants to take ethereum nodes offline – a form of attack that the ethereum community has dealt with in the past.
Full story at http://bit.ly/2kSJ96a
Source: CoinDesk
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