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Bitcoin ABC corrects critical vulnerability in bitcoin cash extraction software

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Bitcoin ABC, the Cryptocurrency Development Team, has released a fix to address a critical vulnerability in bitcoin mining software.

According to the incident report of Bitcoin ABC, the vulnerability allegedly allowed an attacker to initiate a split in the bitcoin species network.

To do this, the attacker would have built a malicious transaction including bitflag "0x20" in the hash type of the signature. The transaction would have been accepted by Bitcoin-ABC 0.17.0 and mined in one block, but rejected by all other bitcoin cash extraction software – including previous versions of Bitcoin-ABC.

Bitcoin ABC was made aware of the vulnerability on April 26 and the developers quietly distributed a fix to the mining pool operators and the "verified bitcoin cash miners" before disclosing the exploit potential to the general public.

From the declaration:

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"After analyzing the vulnerability and possible responses, the developers of Bitcoin-ABC have prepared a patch for the vulnerability, and a private version, to distribute it directly to operators of the mineral exploration pool Due to the decentralized nature of the mining community, it was not possible to reach everyone directly.This version was provided to Bitcoin Cash minors audited to pass on to the trusted miners once that They have been updated. "

This patch has now received a general release, so miners using Bitcoin-ABC 0.17.0 are advised to upgrade to Bitcoin-ABC 0.17.1, which closes the attack vector.

"Bitcoin ABC will take several steps to prevent such an event from happening again, as well as reducing the overall response time in the event of emerging issues in the future", promised the company in his statement. "In addition, Bitcoin ABC is in discussions with industry participants to establish a formal system of bug bonuses."

Notably, Bitcoin ABC has said that they have been alerted to the vulnerability by a "clear and professional" report from an anonymous healer, to whom they intend to give a reward. They are advancing.

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