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Add length check for read ChannelMonitor keys

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Elias Rohrer 2023-09-08 10:00:25 +02:00
parent 9abe4bb23d
commit aeaed62894
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1 changed files with 6 additions and 0 deletions
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6
lightning/src/util/persist.rs
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@ -216,6 +216,12 @@ where
for stored_key in kv_store.list(
CHANNEL_MONITOR_PERSISTENCE_NAMESPACE, CHANNEL_MONITOR_PERSISTENCE_SUB_NAMESPACE)?
{
if stored_key.len() < 66 {
return Err(io::Error::new(
io::ErrorKind::InvalidData,
"Stored key has invalid length"));
}
let txid = Txid::from_hex(stored_key.split_at(64).0).map_err(|_| {
io::Error::new(io::ErrorKind::InvalidData, "Invalid tx ID in stored key")
})?;