Package: mupdf
Version: 1.5-1+b2
Severity: serious
Tags: security

To reproduce,
  mupdf breakout.pdf
  left click in the window

Depending where you click, you will see:
  > []
printed on the terminal, and/or
  libjs: ReferenceError: global is not defined

mupdf will then apparently wait for terminal input.


If mupdf is run from a web browser, this can cause worse trouble.

To reproduce, in an xterm type "firefox &", and configure it to open
pdfs with /usr/bin/mupdf.

Then visit this pdf and click in it.

Your browser will hang.  The xterm shows "Stopped", because the
process group is requesting tty input.

(To recover: killall mupdf-x11, and bg the firefox.)


Thanks for your attention.
Ian.

-- 
Ian Jackson <ijack...@chiark.greenend.org.uk>   These opinions are my own.

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