The SearchEngineTabHelper::OnPageHasOSDD function in browser/ui/search_engines/search_engine_tab_helper.cc in Google Chrome before 42.0.2311.90 does not prevent use of a file: URL for an OpenSearch descriptor XML document, which might allow remote attackers to obtain sensitive information from local files via a crafted (1) http or (2) https web site.
https://security.gentoo.org/glsa/201506-04
https://codereview.chromium.org/917313004
https://code.google.com/p/chromium/issues/detail?id=429838
http://www.securitytracker.com/id/1032209
http://www.debian.org/security/2015/dsa-3238
http://rhn.redhat.com/errata/RHSA-2015-0816.html
http://lists.opensuse.org/opensuse-updates/2015-11/msg00024.html
http://lists.opensuse.org/opensuse-updates/2015-04/msg00040.html
http://googlechromereleases.blogspot.com/2015/04/stable-channel-update_14.html