Use-after-free vulnerability in modules/speech/SpeechSynthesis.cpp in Blink, as used in Google Chrome before 33.0.1750.149, allows remote attackers to cause a denial of service or possibly have unspecified other impact by leveraging improper handling of a certain utterance data structure.
https://src.chromium.org/viewvc/blink?revision=168171&view=revision
https://code.google.com/p/chromium/issues/detail?id=344881
http://www.securitytracker.com/id/1029914
http://www.debian.org/security/2014/dsa-2883
http://security.gentoo.org/glsa/glsa-201408-16.xml
http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00008.html
http://googlechromereleases.blogspot.com/2014/03/stable-channel-update_11.html