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authorStephenButtolph <[email protected]>2020-08-25 13:20:28 -0400
committerStephenButtolph <[email protected]>2020-08-25 13:20:28 -0400
commitb05d11d451fb73843abcf6bd5fc8664b069433a4 (patch)
tree9de0af77831340eb38c28c613849f1e7b65f3a54
parentb53cf297e5cccd577af725bacdb7f3ccb61336bd (diff)
fixed potential vulnerability with bootstrapping blocks
-rw-r--r--plugin/evm/block.go11
-rw-r--r--plugin/evm/vm.go4
2 files changed, 9 insertions, 6 deletions
diff --git a/plugin/evm/block.go b/plugin/evm/block.go
index 375dc6d..5c30fe1 100644
--- a/plugin/evm/block.go
+++ b/plugin/evm/block.go
@@ -74,10 +74,13 @@ func (b *Block) Parent() snowman.Block {
// Verify implements the snowman.Block interface
func (b *Block) Verify() error {
- // Ensure the minimum gas price is paid for every transaction
- for _, tx := range b.ethBlock.Transactions() {
- if tx.GasPrice().Cmp(minGasPrice) < 0 {
- return errInvalidBlock
+ // Only enforce a minimum fee when bootstrapping has finished
+ if b.vm.ctx.IsBootstrapped() {
+ // Ensure the minimum gas price is paid for every transaction
+ for _, tx := range b.ethBlock.Transactions() {
+ if tx.GasPrice().Cmp(minGasPrice) < 0 {
+ return errInvalidBlock
+ }
}
}
diff --git a/plugin/evm/vm.go b/plugin/evm/vm.go
index b4026a8..e1fdc33 100644
--- a/plugin/evm/vm.go
+++ b/plugin/evm/vm.go
@@ -83,7 +83,7 @@ const (
var (
// minGasPrice is the number of nAVAX required per gas unit for a transaction
// to be valid, measured in wei
- minGasPrice = big.NewInt(47*params.GWei)
+ minGasPrice = big.NewInt(47 * params.GWei)
txFee = units.MilliAvax
@@ -94,7 +94,7 @@ var (
errUnsupportedFXs = errors.New("unsupported feature extensions")
errInvalidBlock = errors.New("invalid block")
errInvalidAddr = errors.New("invalid hex address")
- errTooManyAtomicTx = errors.New("too many pending atomix txs")
+ errTooManyAtomicTx = errors.New("too many pending atomic txs")
errAssetIDMismatch = errors.New("asset IDs in the input don't match the utxo")
errWrongNumberOfCredentials = errors.New("should have the same number of credentials as inputs")
errNoInputs = errors.New("tx has no inputs")