GHSA-J2W7-387V-M2RQ PhpSpreadsheet ODS Reader: Unbounded number-rows-repeated → CPU & Memory Exhaustion (DoS)

Summary When PhpSpreadsheet loads an OpenDocument Spreadsheet .ods, Ods::processTableRow reads the table:number-rows-repeated attribute of a with an unchecked int cast, then materialises one cell per repeated row. This value is completely unbounded, so a single 1.4 KB file can instruct the reader...

PhpSpreadsheet ODS Reader: Unbounded number-rows-repeated → CPU & Memory Exhaustion (DoS)

Summary When PhpSpreadsheet loads an OpenDocument Spreadsheet .ods, Ods::processTableRow reads the table:number-rows-repeated attribute of a with an unchecked int cast, then materialises one cell per repeated row. This value is completely unbounded, so a single 1.4 KB file can instruct the reader...