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python3-module-dialog-3.4.0-alt2.noarch |
unsafe-tmp-usage-in-scripts |
info |
The test discovered scripts with errors which may be used by a user for damaging important system files. For example if a script uses in its work a temp file which is created in /tmp directory, then every user can create symlinks with the same name (pattern) in this directory in order to destroy or rewrite some system or another user's files. Scripts _must_ _use_ mktemp/tempfile or must use $TMPDIR. mktemp/tempfile is safest. $TMPDIR is safer than /tmp/ because libpam-tmpdir creates a subdirectory of /tmp that is only accessible by that user, and then sets TMPDIR and other variables to that. Hence, it doesn't matter nearly as much if you create a non-random filename, because nobody but you can access it. Found error in /usr/share/doc/python3-module-dialog-3.4.0/examples/with-autowidgetsize/demo.py: $ grep /tmp/ /usr/share/doc/python3-module-dialog-3.4.0/examples/with-autowidgetsize/demo.py easily append data. With the {widget} widget, you can see the data stream \ flow in real time. To create a FIFO, you can use the commmand mkfifo(1), like this: % mkfifo /tmp/my_shiny_new_fifo Then, you can cat(1) data to the FIFO like this: % cat >>/tmp/my_shiny_new_fifo First line of text Second line of text ... You can end the input to cat(1) by typing Ctrl-D at the beginning of a \ Found error in /usr/share/doc/python3-module-dialog-3.4.0/examples/demo.py: $ grep /tmp/ /usr/share/doc/python3-module-dialog-3.4.0/examples/demo.py easily append data. With the {widget} widget, you can see the data stream \ flow in real time. To create a FIFO, you can use the commmand mkfifo(1), like this: % mkfifo /tmp/my_shiny_new_fifo Then, you can cat(1) data to the FIFO like this: % cat >>/tmp/my_shiny_new_fifo First line of text Second line of text ... You can end the input to cat(1) by typing Ctrl-D at the beginning of a \ |