MINOR: [C++][Parquet] Reject too-short statistics values in FormatStatValue#50025
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jmestwa-coder wants to merge 1 commit into
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MINOR: [C++][Parquet] Reject too-short statistics values in FormatStatValue#50025jmestwa-coder wants to merge 1 commit into
jmestwa-coder wants to merge 1 commit into
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FormatStatValue in cpp/src/parquet/types.cc memcpys sizeof(physical_type) bytes from a string_view that comes straight out of the Thrift statistics block, so a crafted file with min_value or max_value shorter than the column's width (for example, a zero-byte stat on an INT96 column) reads past the buffer. The check belongs in this callee since callers in printer.cc just forward whatever the metadata holds. New ASSERT_THROW coverage in types_test.cc exercises the short-value paths for BOOLEAN, INT32, INT64, FLOAT, DOUBLE, INT96, Decimal and Float16.