[Secure-testing-team] Bug#885339: CVE-2017-17499

[Moritz Muehlenhoff]

Package: imagemagick
Version: 8:6.9.7.4+dfsg-16
Severity: important
Tags: security

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17499:
https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=33078&sid=5fbb164c3830293138917f9b14264ed1

ImageMagick-7: https://github.com/ImageMagick/ImageMagick/commit/8c35502217c1879cb8257c617007282eee3fe1cc
ImageMagick-6: https://github.com/ImageMagick/ImageMagick/commit/dd96d671e4d5ae22c6894c302e8996c13f24c45a