LastRewardRound is sometimes not checkpointed for Delegators

Lines of code Vulnerability details Impact lastRewardRound is not updated/checkpointed for delegators when transcoder changes state. This results in incorrect rewards and votes. It also violates this checkpointing condition specified by the technical specification: Quote: "In practical terms, it...

Underflow in updateTranscoderWithFees can cause corrupted data and loss of winning tickets.

Lines of code Vulnerability details Summary updateTranscoderWtihFees can underflow because MathUtils is used instead of PreciseMathUtils. Proof of Concept According to LIP-92 the initial treasuryRewardCutRate will be set to 10%. treasuryRewardCutRate is set with the...