php: Invalid memory access in function xmlrpc_decode()

An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. Invalid input to the function xmlrpcdecode can lead to an invalid memory access heap out of bounds read or read after free. This is related to xmlelemparsebuf in...