do_auxv_note(struct magic_set *ms, unsigned char *nbuf, uint32_t type,
    int swap, uint32_t namesz __attribute__((__unused__)),
    uint32_t descsz __attribute__((__unused__)),
    size_t noff __attribute__((__unused__)), size_t doff,
    int *flags, size_t size __attribute__((__unused__)), int clazz,
    int fd, off_t ph_off, int ph_num, off_t fsize)
{
#ifdef ELFCORE
	Aux32Info auxv32;
	Aux64Info auxv64;
	size_t elsize = xauxv_sizeof;
	const char *tag;
	int is_string;
	size_t nval;

	if ((*flags & (FLAGS_IS_CORE|FLAGS_DID_CORE_STYLE)) !=
	    (FLAGS_IS_CORE|FLAGS_DID_CORE_STYLE))
		return 0;

	switch (*flags & FLAGS_CORE_STYLE) {
	case OS_STYLE_SVR4:
		if (type != NT_AUXV)
			return 0;
		break;
#ifdef notyet
	case OS_STYLE_NETBSD:
		if (type != NT_NETBSD_CORE_AUXV)
			return 0;
		break;
	case OS_STYLE_FREEBSD:
		if (type != NT_FREEBSD_PROCSTAT_AUXV)
			return 0;
		break;
#endif
	default:
		return 0;
	}

	*flags |= FLAGS_DID_AUXV;

	nval = 0;
	for (size_t off = 0; off + elsize <= descsz; off += elsize) {
		(void)memcpy(xauxv_addr, &nbuf[doff + off], xauxv_sizeof);
		/* Limit processing to 50 vector entries to prevent DoS */
		if (nval++ >= 50) {
			file_error(ms, 0, "Too many ELF Auxv elements");
			return 1;
		}

		switch(xauxv_type) {
		case AT_LINUX_EXECFN:
			is_string = 1;
			tag = "execfn";
			break;
		case AT_LINUX_PLATFORM:
			is_string = 1;
			tag = "platform";
			break;
		case AT_LINUX_UID:
			is_string = 0;
			tag = "real uid";
			break;
		case AT_LINUX_GID:
			is_string = 0;
			tag = "real gid";
			break;
		case AT_LINUX_EUID:
			is_string = 0;
			tag = "effective uid";
			break;
		case AT_LINUX_EGID:
			is_string = 0;
			tag = "effective gid";
			break;
		default:
			is_string = 0;
			tag = NULL;
			break;
		}

		if (tag == NULL)
			continue;

		if (is_string) {
			char buf[256];
			ssize_t buflen;
			buflen = get_string_on_virtaddr(ms, swap, clazz, fd,
			    ph_off, ph_num, fsize, xauxv_val, buf, sizeof(buf));

			if (buflen == 0)
				continue;
			
			if (file_printf(ms, ", %s: '%s'", tag, buf) == -1)
				return 0;
		} else {
			if (file_printf(ms, ", %s: %d", tag, (int) xauxv_val)
			    == -1)
				return 0;
		}
	}
	return 1;
#else
	return 0;
#endif
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.