Fix invalid memory read in PeLib::CoffSymbolTable::read() (#840) (#841)

Fixes #840. Co-authored-by: Ladislav Zezula <[email protected]>
avast · Aug 15, 2020 · c5b0374 · c5b0374
1 parent 4cf40b4
commit c5b0374
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/pelib/CoffSymbolTable.cpp b/src/pelib/CoffSymbolTable.cpp
@@ -94,7 +94,9 @@ namespace PeLib
 		// Read size of string table
 		if (ulFileSize >= stringTableOffset + 4)
 		{
+			stringTable.resize(sizeof(std::uint32_t));
 			memcpy(&stringTableSize, fileData.data() + stringTableOffset, sizeof(uint32_t));
+			*reinterpret_cast<std::uint32_t *>(stringTable.data()) = stringTableSize;
 			uiOffset = stringTableOffset + sizeof(uint32_t);
 		}