do_core_note(struct magic_set *ms, unsigned char *nbuf, uint32_t type,
    int swap, uint32_t namesz, uint32_t descsz,
    size_t noff, size_t doff, int *flags, size_t size, int clazz)
{
#ifdef ELFCORE
	int os_style = -1;
	/*
	 * Sigh.  The 2.0.36 kernel in Debian 2.1, at
	 * least, doesn't correctly implement name
	 * sections, in core dumps, as specified by
	 * the "Program Linking" section of "UNIX(R) System
	 * V Release 4 Programmer's Guide: ANSI C and
	 * Programming Support Tools", because my copy
	 * clearly says "The first 'namesz' bytes in 'name'
	 * contain a *null-terminated* [emphasis mine]
	 * character representation of the entry's owner
	 * or originator", but the 2.0.36 kernel code
	 * doesn't include the terminating null in the
	 * name....
	 */
	if ((namesz == 4 && strncmp((char *)&nbuf[noff], "CORE", 4) == 0) ||
	    (namesz == 5 && strcmp((char *)&nbuf[noff], "CORE") == 0)) {
		os_style = OS_STYLE_SVR4;
	} 

	if ((namesz == 8 && strcmp((char *)&nbuf[noff], "FreeBSD") == 0)) {
		os_style = OS_STYLE_FREEBSD;
	}

	if ((namesz >= 11 && strncmp((char *)&nbuf[noff], "NetBSD-CORE", 11)
	    == 0)) {
		os_style = OS_STYLE_NETBSD;
	}

	if (os_style != -1 && (*flags & FLAGS_DID_CORE_STYLE) == 0) {
		if (file_printf(ms, ", %s-style", os_style_names[os_style])
		    == -1)
			return 1;
		*flags |= FLAGS_DID_CORE_STYLE;
		*flags |= os_style;
	}

	switch (os_style) {
	case OS_STYLE_NETBSD:
		if (type == NT_NETBSD_CORE_PROCINFO) {
			char sbuf[512];
			struct NetBSD_elfcore_procinfo pi;
			memset(&pi, 0, sizeof(pi));
			memcpy(&pi, nbuf + doff, descsz);

			if (file_printf(ms, ", from '%.31s', pid=%u, uid=%u, "
			    "gid=%u, nlwps=%u, lwp=%u (signal %u/code %u)",
			    file_printable(sbuf, sizeof(sbuf),
			    CAST(char *, pi.cpi_name)),
			    elf_getu32(swap, pi.cpi_pid),
			    elf_getu32(swap, pi.cpi_euid),
			    elf_getu32(swap, pi.cpi_egid),
			    elf_getu32(swap, pi.cpi_nlwps),
			    elf_getu32(swap, pi.cpi_siglwp),
			    elf_getu32(swap, pi.cpi_signo),
			    elf_getu32(swap, pi.cpi_sigcode)) == -1)
				return 1;

			*flags |= FLAGS_DID_CORE;
			return 1;
		}
		break;

	default:
		if (type == NT_PRPSINFO && *flags & FLAGS_IS_CORE) {
			size_t i, j;
			unsigned char c;
			/*
			 * Extract the program name.  We assume
			 * it to be 16 characters (that's what it
			 * is in SunOS 5.x and Linux).
			 *
			 * Unfortunately, it's at a different offset
			 * in various OSes, so try multiple offsets.
			 * If the characters aren't all printable,
			 * reject it.
			 */
			for (i = 0; i < NOFFSETS; i++) {
				unsigned char *cname, *cp;
				size_t reloffset = prpsoffsets(i);
				size_t noffset = doff + reloffset;
				size_t k;
				for (j = 0; j < 16; j++, noffset++,
				    reloffset++) {
					/*
					 * Make sure we're not past
					 * the end of the buffer; if
					 * we are, just give up.
					 */
					if (noffset >= size)
						goto tryanother;

					/*
					 * Make sure we're not past
					 * the end of the contents;
					 * if we are, this obviously
					 * isn't the right offset.
					 */
					if (reloffset >= descsz)
						goto tryanother;

					c = nbuf[noffset];
					if (c == '\0') {
						/*
						 * A '\0' at the
						 * beginning is
						 * obviously wrong.
						 * Any other '\0'
						 * means we're done.
						 */
						if (j == 0)
							goto tryanother;
						else
							break;
					} else {
						/*
						 * A nonprintable
						 * character is also
						 * wrong.
						 */
						if (!isprint(c) || isquote(c))
							goto tryanother;
					}
				}
				/*
				 * Well, that worked.
				 */

				/*
				 * Try next offsets, in case this match is
				 * in the middle of a string.
				 */
				for (k = i + 1 ; k < NOFFSETS; k++) {
					size_t no;
					int adjust = 1;
					if (prpsoffsets(k) >= prpsoffsets(i))
						continue;
					for (no = doff + prpsoffsets(k);
					     no < doff + prpsoffsets(i); no++)
						adjust = adjust
						         && isprint(nbuf[no]);
					if (adjust)
						i = k;
				}

				cname = (unsigned char *)
				    &nbuf[doff + prpsoffsets(i)];
				for (cp = cname; *cp && isprint(*cp); cp++)
					continue;
				/*
				 * Linux apparently appends a space at the end
				 * of the command line: remove it.
				 */
				while (cp > cname && isspace(cp[-1]))
					cp--;
				if (file_printf(ms, ", from '%.*s'",
				    (int)(cp - cname), cname) == -1)
					return 1;
				*flags |= FLAGS_DID_CORE;
				return 1;

			tryanother:
				;
			}
		}
		break;
	}
#endif
	return 0;
}

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.