/usr/share/texlive/texmf-dist/metafont/ is in texlive-base 2013.20140215-1ubuntu0.1.
This file is owned by root:root, with mode 0o755.
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/usr/share/texlive/texmf-dist/metafont/base/
/usr/share/texlive/texmf-dist/metafont/base/expr.mf
/usr/share/texlive/texmf-dist/metafont/base/io.mf
/usr/share/texlive/texmf-dist/metafont/base/mf.mf
/usr/share/texlive/texmf-dist/metafont/base/null.mf
/usr/share/texlive/texmf-dist/metafont/base/plain.mf
/usr/share/texlive/texmf-dist/metafont/config/
/usr/share/texlive/texmf-dist/metafont/config/cmmf.ini
/usr/share/texlive/texmf-dist/metafont/config/mf.ini
/usr/share/texlive/texmf-dist/metafont/misc/
/usr/share/texlive/texmf-dist/metafont/misc/3test.mf
/usr/share/texlive/texmf-dist/metafont/misc/6test.mf
/usr/share/texlive/texmf-dist/metafont/misc/mode2dpi.mf
/usr/share/texlive/texmf-dist/metafont/misc/mode2dpixy.mf
/usr/share/texlive/texmf-dist/metafont/misc/modename.mf
/usr/share/texlive/texmf-dist/metafont/misc/modes.mf
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/usr/share/texlive/texmf-dist/metafont/misc/rtest.mf
/usr/share/texlive/texmf-dist/metafont/misc/test.mf
/usr/share/texlive/texmf-dist/metafont/misc/waits.mf
/usr/share/texlive/texmf-dist/metafont/misc/ztest.mf