[AAVE] v3 Periphery maintenance

Voting ended about 2 years agoSucceeded

Simple Summary

Purely technical proposal to do minor improvements on two Aave v3’s periphery components: stataTokens and Sequencer Uptime Feed on Scroll (also known as PriceOracleSentinel).

Motivation

Price oracle sentinel

The Sequencer Uptime Feed (also known as “price oracle sentinel”) is a feature baked into Aave v3 that pauses liquidations & borrowing for a limited amount of time whenever a sequencer downtime is detected on a Chainlink oracle (l2 sequencer feed).

This pause should give users the ability to refill or repay their positions in case the market moved while the sequencer was down.

As the Chainlink Scroll l2 sequencer feed was not yet available when the pool launched, the Sequencer Uptime Feed on Aave was disabled until now.

Stata tokens

In our continuous effort to enhance the security of the aave protocol and the surrounding ecosystem we discovered some minor issues with the Static a token implementation.

For reserves without a supplyCap the maxMint function on the static aToken would revert. While there is currently no reserve without a supplyCap on any network, we think it’s reasonable to fix the issue to prevent unforeseen issues for integrators in the future.
Similar to an issue fixed on the aave core, the static-a-token is prone to permit griefing. While there is no financial incentive for an attacker to perform griefing, we used the upgrade to close the griefing vector & upgrade the token to rely on the open-zeppelin ECDSA library.

Specification

Upon execution, the proposal will call

POOL_ADDRESSES_PROVIDER.setPriceOracleSentinel(NEW_PRICE_ORACLE_SENTINEL) on the addresses provider contract and set the new implementation of the PriceOracleSentinel contract on Aave V3 Scroll
upgrade(token, NEW_TOKEN_IMPLEMENTATION) for all the existing stata tokens
upgrade(token, NEW_FACTORY_IMPLEMENTATION) for all the existing stata factories

References

Implementation: AaveV3Scroll
Tests: AaveV3Scroll
Discussion

Copyright

https://app.aave.com/governance/v3/proposal/?proposalId=53

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Discussion

[AAVE] v3 Periphery maintenance

Timeline

Mar 20, 2024Proposal created

Mar 21, 2024Proposal vote started

Mar 23, 2024Proposal vote ended

Apr 03, 2026Proposal updated

Motivation

Price oracle sentinel

This pause should give users the ability to refill or repay their positions in case the market moved while the sequencer was down.

As the Chainlink Scroll l2 sequencer feed was not yet available when the pool launched, the Sequencer Uptime Feed on Aave was disabled until now.

Stata tokens

In our continuous effort to enhance the security of the aave protocol and the surrounding ecosystem we discovered some minor issues with the Static a token implementation.

For reserves without a supplyCap the maxMint function on the static aToken would revert. While there is currently no reserve without a supplyCap on any network, we think it’s reasonable to fix the issue to prevent unforeseen issues for integrators in the future.

Similar to an issue fixed on the aave core, the static-a-token is prone to permit griefing. While there is no financial incentive for an attacker to perform griefing, we used the upgrade to close the griefing vector & upgrade the token to rely on the open-zeppelin ECDSA library.

Specification

Upon execution, the proposal will call

POOL_ADDRESSES_PROVIDER.setPriceOracleSentinel(NEW_PRICE_ORACLE_SENTINEL) on the addresses provider contract and set the new implementation of the PriceOracleSentinel contract on Aave V3 Scroll

upgrade(token, NEW_TOKEN_IMPLEMENTATION) for all the existing stata tokens

upgrade(token, NEW_FACTORY_IMPLEMENTATION) for all the existing stata factories