Google Chrome before 17.0.963.83 does not properly restrict the extension web request API, which allows remote attackers to cause a denial of service (disrupted system requests) via a crafted extension.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15049
https://exchange.xforce.ibmcloud.com/vulnerabilities/74218
http://www.securitytracker.com/id?1026841
http://www.securityfocus.com/bid/52674
http://security.gentoo.org/glsa/glsa-201203-19.xml
http://secunia.com/advisories/48527
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00000.html
http://googlechromereleases.blogspot.com/2012/03/stable-channel-update_21.html