/usr/share/ is in iptables-dev 1.4.21-1ubuntu1.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/
/usr/share/doc/iptables-dev/
/usr/share/doc/iptables-dev/html/
/usr/share/doc/iptables-dev/html/netfilter-extensions-HOWTO-8.html
/usr/share/doc/iptables-dev/html/netfilter-hacking-HOWTO-5.html
/usr/share/doc/iptables-dev/html/netfilter-extensions-HOWTO-2.html
/usr/share/doc/iptables-dev/html/netfilter-extensions-HOWTO-6.html
/usr/share/doc/iptables-dev/html/netfilter-extensions-HOWTO-5.html
/usr/share/doc/iptables-dev/html/netfilter-extensions-HOWTO-9.html
/usr/share/doc/iptables-dev/html/netfilter-extensions-HOWTO-7.html
/usr/share/doc/iptables-dev/html/netfilter-hacking-HOWTO-7.html
/usr/share/doc/iptables-dev/html/netfilter-hacking-HOWTO-8.html
/usr/share/doc/iptables-dev/html/netfilter-hacking-HOWTO-9.html
/usr/share/doc/iptables-dev/html/netfilter-extensions-HOWTO-1.html
/usr/share/doc/iptables-dev/html/netfilter-hacking-HOWTO-3.html
/usr/share/doc/iptables-dev/html/netfilter-hacking-HOWTO-6.html
/usr/share/doc/iptables-dev/html/netfilter-extensions-HOWTO-4.html
/usr/share/doc/iptables-dev/html/netfilter-extensions-HOWTO.html
/usr/share/doc/iptables-dev/html/netfilter-extensions-HOWTO-3.html
/usr/share/doc/iptables-dev/html/netfilter-hacking-HOWTO-2.html
/usr/share/doc/iptables-dev/html/netfilter-hacking-HOWTO.html
/usr/share/doc/iptables-dev/html/netfilter-hacking-HOWTO-4.html
/usr/share/doc/iptables-dev/html/netfilter-hacking-HOWTO-1.html
/usr/share/doc/iptables-dev/copyright
/usr/share/doc-base/
/usr/share/doc-base/netfilter-extensions
/usr/share/doc-base/netfilter-hacking
/usr/share/doc/iptables-dev/changelog.Debian.gz