Multiple use-after-free vulnerabilities in modules/screen_orientation/ScreenOrientationController.cpp in Blink, as used in Google Chrome before 39.0.2171.65, allow remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that trigger improper handling of a detached frame, related to the (1) lock and (2) unlock methods.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-7907
• https://code.google.com/p/chromium/issues/detail?id=424453
• https://exchange.xforce.ibmcloud.com/vulnerabilities/98795
• https://src.chromium.org/viewvc/blink?revision=184185&view=revision
• http://googlechromereleases.blogspot.com/2014/11/stable-channel-update_18.html
• http://rhn.redhat.com/errata/RHSA-2014-1894.html
• http://secunia.com/advisories/60194
• http://secunia.com/advisories/62608
• http://www.securityfocus.com/bid/71170
• http://www.securitytracker.com/id/1031241