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| author | Andrew Chow <achow101-github@achow101.com> | 2019-10-15 17:26:46 -0400 |
|---|---|---|
| committer | Andrew Chow <achow101-github@achow101.com> | 2020-01-06 12:57:21 -0500 |
| commit | deaa6dd144f5650b385658a0c4f9a014aff8dde2 (patch) | |
| tree | 21470cf99b54531eb03c5143cc3400e0495fdbfa /src/wallet | |
| parent | f1ef7f0aa46338f4cd8de79696027a1bf868f359 (diff) | |
psbt: check output index is within bounds before accessing
Diffstat (limited to 'src/wallet')
| -rw-r--r-- | src/wallet/psbtwallet.cpp | 3 | ||||
| -rw-r--r-- | src/wallet/test/psbt_wallet_tests.cpp | 9 |
2 files changed, 12 insertions, 0 deletions
diff --git a/src/wallet/psbtwallet.cpp b/src/wallet/psbtwallet.cpp index 96c1ad8d3f..3e6386a63f 100644 --- a/src/wallet/psbtwallet.cpp +++ b/src/wallet/psbtwallet.cpp @@ -44,6 +44,9 @@ TransactionError FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& ps if (!input.witness_utxo.IsNull()) { script = input.witness_utxo.scriptPubKey; } else if (input.non_witness_utxo) { + if (txin.prevout.n >= input.non_witness_utxo->vout.size()) { + return TransactionError::MISSING_INPUTS; + } script = input.non_witness_utxo->vout[txin.prevout.n].scriptPubKey; } else { // There's no UTXO so we can just skip this now diff --git a/src/wallet/test/psbt_wallet_tests.cpp b/src/wallet/test/psbt_wallet_tests.cpp index d930ca6bea..5368842ff5 100644 --- a/src/wallet/test/psbt_wallet_tests.cpp +++ b/src/wallet/test/psbt_wallet_tests.cpp @@ -68,6 +68,15 @@ BOOST_AUTO_TEST_CASE(psbt_updater_test) ssTx << psbtx; std::string final_hex = HexStr(ssTx.begin(), ssTx.end()); BOOST_CHECK_EQUAL(final_hex, "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"); + + // Mutate the transaction so that one of the inputs is invalid + psbtx.tx->vin[0].prevout.n = 2; + + // Try to sign the mutated input + SignatureData sigdata; + psbtx.inputs[0].FillSignatureData(sigdata); + const SigningProvider* provider = m_wallet.GetSigningProvider(ws1, sigdata); + BOOST_CHECK(!SignPSBTInput(*provider, psbtx, 0, SIGHASH_ALL)); } BOOST_AUTO_TEST_CASE(parse_hd_keypath) |