tstricter tx deserialization: forbid negative output amount values - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
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---
DIR commit 12c5474cf126f8bcb01a5cf90b582189f1297cb0
DIR parent 0b78cb5e6bd4242c6fb773413a2ce62af9a03ae3
HTML Author: SomberNight <somber.night@protonmail.com>
Date: Tue, 12 Jun 2018 14:41:30 +0200
stricter tx deserialization: forbid negative output amount values
Diffstat:
M lib/transaction.py | 2 ++
1 file changed, 2 insertions(+), 0 deletions(-)
---
DIR diff --git a/lib/transaction.py b/lib/transaction.py
t@@ -536,6 +536,8 @@ def parse_output(vds, i):
d['value'] = vds.read_int64()
if d['value'] > TOTAL_COIN_SUPPLY_LIMIT_IN_BTC * COIN:
raise SerializationError('invalid output amount (too large)')
+ if d['value'] < 0:
+ raise SerializationError('invalid output amount (negative)')
scriptPubKey = vds.read_bytes(vds.read_compact_size())
d['type'], d['address'] = get_address_from_output_script(scriptPubKey)
d['scriptPubKey'] = bh2u(scriptPubKey)