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A bug in an older model of crypto lending protocol Aave is obstructing customers from interacting with Wrapped Ether (WETH), Tether (USDT), Wrapped Bitcoin (WBTC) or Wrapped Matic (WMATIC) swimming pools on Aave V2 Polygon, stopping property from being withdrawn from them, in keeping with a Could 19 proposal that makes an attempt to fix the bug by means of a patch. The proposal says that customers are at the moment unable to “provide extra of these property, borrow, repay, or withdraw.”
Though withdrawals are at the moment inconceivable, the workforce acknowledged that funds are “completely protected,” because the bug will be fastened after a governance vote.
.@AaveAave the most recent improve of ReserveInterestRateStrategy in Aave V2 (Polygon) has brought on a short lived halt of the protocol, impacting property value ~$110M!
The foundation trigger is the brand new ReserveInterestRateStrategy is barely appropriate with Ethereum, not appropriate with Polygon. https://t.co/kg5696QNPo pic.twitter.com/Ze3zSBS8Ck— BlockSec (@BlockSecTeam) May 19, 2023
The bug solely impacts Aave V2 on Polygon. AaveV3, which is the newest model, stays unaffected, as does V2 deployments to Ethereum or Avalanche.
The damaged code arose due to a Could 16 rate of interest curve patch applied to all deployments of V2. The Polygon implementation of V2 makes use of a barely totally different checklist of operate definitions (known as an “interface”) for its charge technique contracts in comparison with the Ethereum and Avalanche implementations. However the rate of interest curve modifications didn’t take note of this distinction, inflicting the bug to develop solely within the Polygon deployment.
The brand new proposal asks Aave’s governing physique, Aave DAO, to approve code modifications to solely the Polygon model to repair the patch. Voting is scheduled to start on Could 20, and can proceed till Could 23, the proposal acknowledged.
Associated: Aave DAO votes for ‘rescue plan’ to save lost tokens
Aave is most well-known for its flash mortgage characteristic that enables customers to borrow crypto, make trades, and pay again the loans inside the similar block with out requiring collateral. It started on Ethereum, however has been increasing into different networks over the previous few years. On April 17, Aave governance voted to deploy the protocol on zkSync Era, a layer 2 of Ethereum that makes use of zero-knowledge proof know-how. On Could 8, Aave V3 deployed to the Metis network, which can also be a layer 2 of Ethereum.
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