This is a community patch taken from
https://anonscm.debian.org/cgit/pkg-perl/packages/libclipboard-perl.git/tree/debian/patches/insecure-tempfile.patch.
Courtesy of Gregor Herrmann <gregoa@debian.org>.
Gentoo-Bug: https://bugs.gentoo.org/521890
Package-Manager: portage-2.3.0
--- /dev/null
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+MODULE_AUTHOR=KING
+MODULE_VERSION=0.13
+inherit perl-module
+
+DESCRIPTION="Copy and paste with any OS"
+
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~ppc ~ppc64 ~x86"
+IUSE=""
+
+# See bug 521890.
+PATCHES=(
+ "${FILESDIR}"/"${P}"-insecure-tempfile.patch
+)
+
+RDEPEND="x11-misc/xclip"
--- /dev/null
+Description: Fix insecure use of temporary files.
+ This is CVE-2014-5509.
+Origin: vendor
+Bug: https://rt.cpan.org/Public/Bug/Display.html?id=98435
+Forwarded: https://rt.cpan.org/Public/Bug/Display.html?id=98435
+Author: gregor herrmann <gregoa@debian.org>
+Last-Update: 2016-08-13
+
+--- a/scripts/clipedit
++++ b/scripts/clipedit
+@@ -1,10 +1,11 @@
+ #!/usr/bin/perl
+ use strict;
+ use Clipboard;
++use File::Temp qw( tempfile );
+
+ my $orig = Clipboard->paste;
+
+-my $tmpfilename = "/tmp/clipedit$$";
++my ($tmpfile, $tmpfilename) = tempfile();
+ open my $tmpfile, ">$tmpfilename" or die "Failure to open $tmpfilename: $!";
+ print $tmpfile $orig;
+ close $tmpfile;