[Bug 1646485] Re: security update regression in 'convert' tool when creating an image containing a text label

[tyrun demeg]

Confirming I'm seeing this same bug.

$> convert -background transparent -fill black -pointsize 32 label:test
out.png

convert.im6: no images defined `out.png' @
error/convert.c/ConvertImageCommand/3044.

$> convert -version

Version: ImageMagick 6.7.7-10 2016-11-29 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2012 ImageMagick Studio LLC
Features: OpenMP

Ubuntu 14.04

$> lsb_release -a

No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 14.04.5 LTS
Release:	14.04
Codename:	trusty

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https://bugs.launchpad.net/bugs/1646485

Title:
  security update regression in 'convert' tool when creating an image
  containing a text label

Status in imagemagick package in Ubuntu:
  Confirmed

Bug description:
  Running the following command doesn't work anymore:

     convert -background transparent -fill black -pointsize 32
  label:test out.png

  when libmagickcore4-8:6.6.9.7-5ubuntu3.6 is installed.

  It fails with the following error:

  convert: missing an image filename `out.png' @
  error/convert.c/ConvertImageCommand/3011.

  and exits with status 1.

  It works fine when I downgrade libmagickcore4 to 8:6.6.9.7-5ubuntu3.5.
  The image is created, and the exit status is 0.

  It seems like the security patches in 8:6.6.9.7-5ubuntu3.6 broke this
  behavior.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: libmagickcore4 8:6.6.9.7-5ubuntu3.6
  ProcVersionSignature: Ubuntu 3.13.0-39.66~precise1-generic 3.13.11.8
  Uname: Linux 3.13.0-39-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.13
  Architecture: amd64
  Date: Thu Dec  1 05:02:54 2016
  InstallationMedia: Ubuntu 12.04.5 LTS "Precise Pangolin" - Release amd64 (20140807.1)
  MarkForUpload: True
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: imagemagick
  UpgradeStatus: No upgrade log present (probably fresh install)

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