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Hotfix_2000-12-15a
This is a "hotfix" product. Hotfix products can be installed to
incorporate modifications to Zope at runtime without requiring
an immediate installation upgrade. Hotfix products are installed
just as you would install any other Zope product.
This hotfix addresses an important security issue that affects all
released Zope versions up to and including Zope 2.2.4 final.
The issue involves the computation of local roles. In some situations
the computation was not climbing the correct hierarchy of folders,
sometimes granting local roles inappropriately. This could allow
users with privileges in one folder to gain the same privileges in
another folder.
We *highly* recommend that any Zope site running versions of
Zope up to and including 2.2.4 have this hotfix product installed
to mitigate the issue if the site is accessible by untrusted users
who may have localized privileges.