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fix a couple bugs found by OSS-fuzz 

- index out of bounds when importing outputs
- accessing invalid CLSAG data
This commit is contained in:
moneromooo-monero 2020-09-24 15:16:44 +00:00
parent d27d4526fe
commit b6c4f8cd54
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GPG Key ID: 686F07454D6CEFC3
2 changed files with 8 additions and 0 deletions
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6
src/ringct/rctTypes.h
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@ -368,6 +368,12 @@ namespace rct {
template<bool W, template <bool> class Archive> template<bool W, template <bool> class Archive>
bool serialize_rctsig_prunable(Archive<W> &ar, uint8_t type, size_t inputs, size_t outputs, size_t mixin) bool serialize_rctsig_prunable(Archive<W> &ar, uint8_t type, size_t inputs, size_t outputs, size_t mixin)
{ {
if (inputs >= 0xffffffff)
return false;
if (outputs >= 0xffffffff)
return false;
if (mixin >= 0xffffffff)
return false;
if (type == RCTTypeNull) if (type == RCTTypeNull)
return ar.stream().good(); return ar.stream().good();
if (type != RCTTypeFull && type != RCTTypeSimple && type != RCTTypeBulletproof && type != RCTTypeBulletproof2 && type != RCTTypeCLSAG) if (type != RCTTypeFull && type != RCTTypeSimple && type != RCTTypeBulletproof && type != RCTTypeBulletproof2 && type != RCTTypeCLSAG)

2
src/wallet/wallet2.cpp
View File

@ -13043,6 +13043,8 @@ process:
crypto::public_key tx_pub_key = get_tx_pub_key_from_received_outs(td); crypto::public_key tx_pub_key = get_tx_pub_key_from_received_outs(td);
const std::vector<crypto::public_key> additional_tx_pub_keys = get_additional_tx_pub_keys_from_extra(td.m_tx); const std::vector<crypto::public_key> additional_tx_pub_keys = get_additional_tx_pub_keys_from_extra(td.m_tx);
THROW_WALLET_EXCEPTION_IF(td.m_internal_output_index >= td.m_tx.vout.size(),
error::wallet_internal_error, "Internal index is out of range");
THROW_WALLET_EXCEPTION_IF(td.m_tx.vout[td.m_internal_output_index].target.type() != typeid(cryptonote::txout_to_key), THROW_WALLET_EXCEPTION_IF(td.m_tx.vout[td.m_internal_output_index].target.type() != typeid(cryptonote::txout_to_key),
error::wallet_internal_error, "Unsupported output type"); error::wallet_internal_error, "Unsupported output type");
const crypto::public_key& out_key = boost::get<cryptonote::txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key; const crypto::public_key& out_key = boost::get<cryptonote::txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key;