The NavigationScheduler::schedulePageBlock function in core/loader/NavigationScheduler.cpp in Blink, as used in Google Chrome before 38.0.2125.101, does not properly provide substitute data for pages blocked by the XSS auditor, which allows remote attackers to obtain sensitive information via a crafted web site.
https://src.chromium.org/viewvc/blink?revision=179240&view=revision
http://www.securityfocus.com/bid/70273
http://rhn.redhat.com/errata/RHSA-2014-1626.html
http://googlechromereleases.blogspot.com/2014/10/stable-channel-update.html