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Litecoin Patches Zero-Day Bug 13-Block Reorg

Litecoin Network Patches Zero-Day Bug After Exploit

  • On April 25, a zero-day bug affected major Litecoin mining pools, allowing invalid MWEB transactions via non-updated nodes.
  • A network response led to a 13-block reorganization that reversed these invalid transactions.
  • The Litecoin team confirmed all valid transactions were unaffected and the bug has been fully patched.
  • NEAR Intents initially reported $600K in exposure but actual losses are likely lower after the invalid transactions were removed.
  • The incident highlights vulnerabilities in proof-of-work networks running older software versions, as noted by Zcash founder Zooko Wilcox.

A zero-day bug in the Litecoin network allowed attackers to exploit non-updated nodes, leading to invalid MWEB transactions pegged out to DEX platforms. The network’s corrective action involved a reorganization of blocks to remove these fraudulent transactions, ensuring the safety of all valid operations during this period.

Despite initial concerns about potential losses up to $600K reported by NEAR Intents, the removal of invalid transactions suggests lower actual losses. This event underscores the importance of maintaining updated software on proof-of-work networks to prevent similar exploits in the future. (Source)

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