Use-after-free vulnerability in the WebAudio implementation in Blink, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that trigger an audio-rendering thread in which AudioNode data is improperly maintained.
https://src.chromium.org/viewvc/blink?revision=186914&view=revision
https://src.chromium.org/viewvc/blink?revision=186482&view=revision
https://codereview.chromium.org/802593004
https://code.google.com/p/chromium/issues/detail?id=434136
http://www.ubuntu.com/usn/USN-2476-1
http://www.securitytracker.com/id/1031623
http://www.securityfocus.com/bid/72288
http://security.gentoo.org/glsa/glsa-201502-13.xml
http://secunia.com/advisories/62665
http://secunia.com/advisories/62575
http://secunia.com/advisories/62383
http://rhn.redhat.com/errata/RHSA-2015-0093.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00005.html
http://googlechromereleases.blogspot.com/2015/01/stable-update.html