GnuCOBOL 2.2 has a use-after-free in the end_scope_of_program_name() function in cobc/parser.y via crafted COBOL source code.

GnuCOBOL 2.2 has a stack-based buffer overflow in the cb_name() function in cobc/tree.c via crafted COBOL source code.

GnuCOBOL 2.2 has a stack-based buffer overflow in cb_encode_program_id in cobc/typeck.c via crafted COBOL source code.

GnuCOBOL 2.2 has a heap-based buffer overflow in read_literal in cobc/scanner.l via crafted COBOL source code.

GnuCOBOL 2.2 has a buffer overflow in cb_evaluate_expr in cobc/field.c via crafted COBOL source code.

GnuCOBOL 2.2 has a buffer overflow in cb_push_op in cobc/field.c via crafted COBOL source code.