The UnescapeURLWithOffsetsImpl function in net/base/escape.cc in Google Chrome before 34.0.1847.116 does not properly handle bidirectional Internationalized Resource Identifiers (IRIs), which makes it easier for remote attackers to spoof URLs via crafted use of right-to-left (RTL) Unicode text.
https://src.chromium.org/viewvc/chrome?revision=254091&view=revision
https://code.google.com/p/chromium/issues/detail?id=337746
http://www.debian.org/security/2014/dsa-2905
http://security.gentoo.org/glsa/glsa-201408-16.xml
http://lists.opensuse.org/opensuse-updates/2014-05/msg00012.html
http://googlechromereleases.blogspot.com/2014/04/stable-channel-update.html