On April 26, 2018, the Bitcoin ABC development team were notified of a critical issue that applies to Bitcoin Cash miners who were utilizing the Bitcoin-ABC 0.17.0 client. After analyzing the vulnerability ABC developers created a patch and distributed the new ABC client 0.17.1 and released the software to BCH mining pools.
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Bitcoin ABC Developers Address a Vulnerability Found in the Client Version 0.17.0
Just recently the Bitcoin ABC development team were notified of a vulnerability in the ABC 0.17.0 client by an unknown person(s). According to developers, the flaw could have caused an unintended split in the Bitcoin Cash network. Reports detail that an attacker could construct a malicious transaction that would be accepted by Bitcoin-ABC 0.17.0 miners. However, the block would be rejected by the rest of the compatible versions of Bitcoin Cash-compatible mining applications like the Bitcoin Unlimited client.
“BUCash and versions of Bitcoin-ABC prior to 0.17.0 could be split from the majority Bitcoin Cash blockchain — Only Bitcoin ABC and BUCash nodes were included in the analysis of this vulnerability,” the development team details.
After some testing and analysis of the vulnerability, the Bitcoin ABC development team crafted a patch for the issue immediately. “Bitcoin ABC 0.17.1 fixes this problem,” explains the ABC teams incident report and the new software was forwarded to verified BCH miners. The Lead Developer of the Bitcoin.com’s Mining Pool, Shaun Chong, explained that after the vulnerability report was released the ABC development team was very quick to assess and fix the problem.
“Bitcoin ABC dealt with the situation professionally and responsibly — They were quick to patch the bug and distribute it privately to miners, hence reducing the risk
