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check accessing an element past the end of a container

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moneromooo-monero 2017-12-12 11:08:11 +00:00
parent 2305bf260d
commit b49ddc766d
No known key found for this signature in database
GPG key ID: 686F07454D6CEFC3
8 changed files with 46 additions and 12 deletions
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14
src/wallet/wallet2.cpp
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@ -540,6 +540,11 @@ crypto::hash8 get_short_payment_id(const tools::wallet2::pending_tx &ptx)
{
if(get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8))
{
if (ptx.dests.empty())
{
MWARNING("Encrypted payment id found, but no destinations public key, cannot decrypt");
return crypto::null_hash8;
}
decrypt_payment_id(payment_id8, ptx.dests[0].addr.m_view_public_key, ptx.tx_key);
}
}
@ -4050,6 +4055,11 @@ crypto::hash wallet2::get_payment_id(const pending_tx &ptx) const
crypto::hash8 payment_id8 = null_hash8;
if(get_encrypted_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id8))
{
if (ptx.dests.empty())
{
MWARNING("Encrypted payment id found, but no destinations public key, cannot decrypt");
return crypto::null_hash;
}
if (decrypt_payment_id(payment_id8, ptx.dests[0].addr.m_view_public_key, ptx.tx_key))
{
memcpy(payment_id.data, payment_id8.data, 8);
@ -4274,6 +4284,7 @@ bool wallet2::sign_tx(unsigned_tx_set &exported_txs, const std::string &signed_f
for (size_t n = 0; n < exported_txs.txes.size(); ++n)
{
tools::wallet2::tx_construction_data &sd = exported_txs.txes[n];
THROW_WALLET_EXCEPTION_IF(sd.sources.empty(), error::wallet_internal_error, "Empty sources");
LOG_PRINT_L1(" " << (n+1) << ": " << sd.sources.size() << " inputs, ring size " << sd.sources[0].outputs.size());
signed_txes.ptx.push_back(pending_tx());
tools::wallet2::pending_tx &ptx = signed_txes.ptx.back();
@ -6637,7 +6648,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_2(std::vector<cryp
LOG_PRINT_L2("Made a " << ((txBlob.size() + 1023) / 1024) << " kB tx, with " << print_money(available_for_fee) << " available for fee (" <<
print_money(needed_fee) << " needed)");
if (needed_fee > available_for_fee && dsts[0].amount > 0)
if (needed_fee > available_for_fee && !dsts.empty() && dsts[0].amount > 0)
{
// we don't have enough for the fee, but we've only partially paid the current address,
// so we can take the fee from the paid amount, since we'll have to make another tx anyway
@ -8912,6 +8923,7 @@ uint64_t wallet2::get_blockchain_height_by_date(uint16_t year, uint8_t month, ui
throw std::runtime_error(oss.str());
}
cryptonote::block blk_min, blk_mid, blk_max;
if (res.blocks.size() < 3) throw std::runtime_error("Not enough blocks returned from daemon");
if (!parse_and_validate_block_from_blob(res.blocks[0].block, blk_min)) throw std::runtime_error("failed to parse blob at height " + std::to_string(height_min));
if (!parse_and_validate_block_from_blob(res.blocks[1].block, blk_mid)) throw std::runtime_error("failed to parse blob at height " + std::to_string(height_mid));
if (!parse_and_validate_block_from_blob(res.blocks[2].block, blk_max)) throw std::runtime_error("failed to parse blob at height " + std::to_string(height_max));