CVE-2017-18196

Leptonica 1.74.4 constructs unintended pathnames (containing duplicated
path components) when operating on files in /tmp subdirectories, which
might allow local users to bypass intended file restrictions by leveraging
access to a directory located deeper within the /tmp directory tree, as
demonstrated by /tmp/ANY/PATH/ANY/PATH/input.tif.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=885704&gt;