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[bug #61424] [libgroff] directory traversal in .fp request


From: Dave
Subject: [bug #61424] [libgroff] directory traversal in .fp request
Date: Wed, 29 Dec 2021 14:29:52 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Linux i686; rv:45.0) Gecko/20100101 Firefox/45.0

Follow-up Comment #6, bug #61424 (project groff):

Weeeeeeeird.  I, too, can reproduce it -- if I'm far enough below my home
directory.

With the file bogusfont in ~, a hello-dave.roff in ~/1/2/3/4 (with the
appropriate number of instances of "../" in its .fp call) produces EVIL.  But
in ~/1/2/3 or higher (with the path in the .fp line adjusted accordingly), it
produces WORD.

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