The Spellcheck API implementation in Google Chrome before 44.0.2403.89 does not use an HTTPS session for downloading a Hunspell dictionary, which allows man-in-the-middle attackers to deliver incorrect spelling suggestions or possibly have unspecified other impact via a crafted file, a related issue to CVE-2015-1263.
https://security.gentoo.org/glsa/201603-09
https://codereview.chromium.org/1056103005
https://code.google.com/p/chromium/issues/detail?id=479162
http://www.securitytracker.com/id/1033031
http://www.securityfocus.com/bid/75973
http://www.debian.org/security/2015/dsa-3315
http://rhn.redhat.com/errata/RHSA-2015-1499.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00038.html
http://googlechromereleases.blogspot.com/2015/07/stable-channel-update_21.html