cpio: fix CVE-2016-2037
"The cpio_safer_name_suffix function in util.c in cpio 2.11 allows
remote attackers to cause a denial of service (out-of-bounds write)
via a crafted cpio file."
https://nvd.nist.gov/vuln/detail/CVE-2016-2037
Note that there appear to be two versions of this fix. The original
patch posted to the bug-cpio mailing list [1] is used by Debian [2],
but apparently causes regression [3]. The patch accepted to the
upstream git repo [4] seems to be the most complete fix.
[1] https://lists.gnu.org/archive/html/bug-cpio/2016-01/msg00005.html
[2] https://security-tracker.debian.org/tracker/CVE-2016-2037
[3] https://www.mail-archive.com/bug-cpio@gnu.org/msg00584.html
[4] http://git.savannah.gnu.org/cgit/cpio.git/commit/?id=
d36ec5f4e93130efb24fb9678aafd88e8070095b
Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
