/usr/share/perl5/CPANPLUS/ is in libcpanplus-perl 0.9156-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/CPANPLUS/Backend/
/usr/share/perl5/CPANPLUS/Backend.pm
/usr/share/perl5/CPANPLUS/Backend/RV.pm
/usr/share/perl5/CPANPLUS/Config/
/usr/share/perl5/CPANPLUS/Config.pm
/usr/share/perl5/CPANPLUS/Config/HomeEnv.pm
/usr/share/perl5/CPANPLUS/Config/System.pm
/usr/share/perl5/CPANPLUS/Configure/
/usr/share/perl5/CPANPLUS/Configure.pm
/usr/share/perl5/CPANPLUS/Configure/Setup.pm
/usr/share/perl5/CPANPLUS/Dist/
/usr/share/perl5/CPANPLUS/Dist.pm
/usr/share/perl5/CPANPLUS/Dist/Autobundle.pm
/usr/share/perl5/CPANPLUS/Dist/Base.pm
/usr/share/perl5/CPANPLUS/Dist/MM.pm
/usr/share/perl5/CPANPLUS/Dist/Sample.pm
/usr/share/perl5/CPANPLUS/Error.pm
/usr/share/perl5/CPANPLUS/FAQ.pod
/usr/share/perl5/CPANPLUS/Hacking.pod
/usr/share/perl5/CPANPLUS/Internals/
/usr/share/perl5/CPANPLUS/Internals.pm
/usr/share/perl5/CPANPLUS/Internals/Constants/
/usr/share/perl5/CPANPLUS/Internals/Constants.pm
/usr/share/perl5/CPANPLUS/Internals/Constants/Report.pm
/usr/share/perl5/CPANPLUS/Internals/Extract.pm
/usr/share/perl5/CPANPLUS/Internals/Fetch.pm
/usr/share/perl5/CPANPLUS/Internals/Report.pm
/usr/share/perl5/CPANPLUS/Internals/Search.pm
/usr/share/perl5/CPANPLUS/Internals/Source/
/usr/share/perl5/CPANPLUS/Internals/Source.pm
/usr/share/perl5/CPANPLUS/Internals/Source/Memory.pm
/usr/share/perl5/CPANPLUS/Internals/Source/SQLite/
/usr/share/perl5/CPANPLUS/Internals/Source/SQLite.pm
/usr/share/perl5/CPANPLUS/Internals/Source/SQLite/Tie.pm
/usr/share/perl5/CPANPLUS/Internals/Utils/
/usr/share/perl5/CPANPLUS/Internals/Utils.pm
/usr/share/perl5/CPANPLUS/Internals/Utils/Autoflush.pm
/usr/share/perl5/CPANPLUS/Module/
/usr/share/perl5/CPANPLUS/Module.pm
/usr/share/perl5/CPANPLUS/Module/Author/
/usr/share/perl5/CPANPLUS/Module/Author.pm
/usr/share/perl5/CPANPLUS/Module/Author/Fake.pm
/usr/share/perl5/CPANPLUS/Module/Checksums.pm
/usr/share/perl5/CPANPLUS/Module/Fake.pm
/usr/share/perl5/CPANPLUS/Module/Signature.pm
/usr/share/perl5/CPANPLUS/Selfupdate.pm
/usr/share/perl5/CPANPLUS/Shell/
/usr/share/perl5/CPANPLUS/Shell.pm
/usr/share/perl5/CPANPLUS/Shell/Classic.pm
/usr/share/perl5/CPANPLUS/Shell/Default/
/usr/share/perl5/CPANPLUS/Shell/Default.pm
/usr/share/perl5/CPANPLUS/Shell/Default/Plugins/
/usr/share/perl5/CPANPLUS/Shell/Default/Plugins/CustomSource.pm
/usr/share/perl5/CPANPLUS/Shell/Default/Plugins/HOWTO.pod
/usr/share/perl5/CPANPLUS/Shell/Default/Plugins/Remote.pm
/usr/share/perl5/CPANPLUS/Shell/Default/Plugins/Source.pm