Manual Review

A thorough line-by-line review was conducted on the codebase to identify potential malfunctions and vulnerabilities in Avant Protocol's avUSD ecosystem.

As the project at hand implements an EIP-20 token ecosystem, intricate care was put into ensuring that the flow of funds within the system conforms to the specifications and restrictions laid forth within the protocol's specification.

We validated that all state transitions of the system occur within sane criteria and that all rudimentary formulas within the system execute as expected. We pinpointed two potential vulnerabilities within the system which could have had moderate ramifications to its overall operation; for more information, kindly consult the relevant section of the audit's summary as well as the dedicated exhibits.

Additionally, the system was investigated for any other commonly present attack vectors such as re-entrancy attacks, mathematical truncations, logical flaws and ERC / EIP standard inconsistencies. The documentation of the project was satisfactory to the extent it need be.

A total of 22 findings were identified over the course of the manual review of which 4 findings concerned the behaviour and security of the system. The non-security related findings, such as optimizations, are included in the separate Code Style chapter.

The finding table below enumerates all these security / behavioural findings:

ID	Severity	Addressed	Title
AUM-01M			Potential Cross-User Interference
AUM-02M			Insecure Nonce Validation
AUM-03M			Non-Granular Signature Delegation
SAS-01M			Inexistent Validation of Non-Zero Amount