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cryptonote_protocol_handler: prevent potential DoS

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Essentially, one can send such a large amount of IDs that core exhausts
all free memory. This issue can theoretically be exploited using very
large CN blockchains, such as Monero.

This is a partial fix. Thanks and credit given to CryptoNote author
'cryptozoidberg' for collaboration and the fix. Also thanks to
'moneromooo'. Referencing HackerOne report #506595.
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anonimal 2019-03-09 09:11:44 +00:00 • committed by moneromooo-monero
parent 39169ace09
commit 8f66b7053a
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2 changed files with 12 additions and 0 deletions
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src/cryptonote_protocol/cryptonote_protocol_handler.h
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@ -52,6 +52,7 @@ PUSH_WARNINGS
DISABLE_VS_WARNINGS(4355)
#define LOCALHOST_INT 2130706433
#define CURRENCY_PROTOCOL_MAX_BLOCKS_REQUEST_COUNT 500
namespace cryptonote
{