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epee: basic sanity check on allocation size from untrusted source

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Reported by guidov
This commit is contained in:
moneromooo-monero 2019-03-08 12:02:21 +00:00
parent 7b3df89bd4
commit 39169ace09
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1 changed files with 1 additions and 0 deletions
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contrib/epee/include/storages/portable_storage_from_bin.h
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@ -136,6 +136,7 @@ namespace epee
//for pod types
array_entry_t<type_name> sa;
size_t size = read_varint();
CHECK_AND_ASSERT_THROW_MES(size <= m_count, "Size sanity check failed");
sa.reserve(size);
//TODO: add some optimization here later
while(size--)