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Merge pull request #1064 from karalabe/downloader-attacks

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Fix two additional download vulnerabilities
This commit is contained in:
Jeffrey Wilcke
2015-05-21 09:00:12 -07:00
parent 1da145675d 06a041589f
commit af28736bd0
6 changed files with 99 additions and 28 deletions
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6
eth/handler.go
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@ -206,8 +206,8 @@ func (self *ProtocolManager) handleMsg(p *peer) error {
return errResp(ErrDecode, "->msg %v: %v", msg, err)
}
if request.Amount > maxHashes {
request.Amount = maxHashes
if request.Amount > downloader.MaxHashFetch {
request.Amount = downloader.MaxHashFetch
}
hashes := self.chainman.GetBlockHashesFromHash(request.Hash, request.Amount)
@ -254,7 +254,7 @@ func (self *ProtocolManager) handleMsg(p *peer) error {
if block != nil {
blocks = append(blocks, block)
}
if i == maxBlocks {
if i == downloader.MaxBlockFetch {
break
}
}