--- a/list.c +++ b/list.c @@ -339,7 +339,14 @@ int list_files(__G) /* return PK-type error code */ G.crec.compression_method == ENHDEFLATED) { methbuf[5] = dtype[(G.crec.general_purpose_bit_flag>>1) & 3]; } else if (methnum >= NUM_METHODS) { - sprintf(&methbuf[4], "%03u", G.crec.compression_method); + /* Fix for CVE-2014-9913, similar to CVE-2016-9844. + * Use the old decimal format only for values which fit. + */ + if (G.crec.compression_method <= 999) { + sprintf( &methbuf[ 4], "%03u", G.crec.compression_method); + } else { + sprintf( &methbuf[ 3], "%04X", G.crec.compression_method); + } } #if 0 /* GRR/Euro: add this? */