Use-after-free vulnerability in the ProcessingInstruction::setXSLStyleSheet function in core/dom/ProcessingInstruction.cpp in the DOM implementation in Blink, as used in Google Chrome before 38.0.2125.101, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
https://support.apple.com/kb/HT204949
https://src.chromium.org/viewvc/blink?revision=182309&view=revision
http://www.securitytracker.com/id/1031647
http://www.securityfocus.com/bid/70273
http://support.apple.com/HT204246
http://support.apple.com/HT204245
http://support.apple.com/HT204243
http://rhn.redhat.com/errata/RHSA-2014-1626.html
http://lists.apple.com/archives/security-announce/2015/Jun/msg00006.html
http://lists.apple.com/archives/security-announce/2015/Jan/msg00002.html
http://lists.apple.com/archives/security-announce/2015/Jan/msg00001.html
http://lists.apple.com/archives/security-announce/2015/Jan/msg00000.html
http://googlechromereleases.blogspot.com/2014/10/stable-channel-update.html