#consensus-bug2 articles

2 articles

CryptoBearishEthereum Foundation Blog · Nov 257/102

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Security alert [11/24/2016]: Consensus bug in geth v1.4.19 and v1.5.2

A critical consensus bug was discovered in Geth versions v1.4.19 and v1.5.2 related to the journaling mechanism, causing an Ethereum network fork at block #2686351 on November 24, 2016. This represents a high-severity security issue affecting Ethereum's consensus layer and network stability.

CryptoBearishEthereum Foundation Blog · Sep 27/102

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Security Advisory [Implementation bugs in Go and Python clients can cause DoS – Fixed – Please update clients]

A critical security vulnerability was discovered in Go and Python Ethereum clients (geth) that causes crashes when processing blocks with specific transaction combinations. The bug creates state transition and consensus issues that could lead to network-wide DoS attacks if exploited, but has been fixed and requires immediate client updates.