LoginWindow in Apple OS X before 10.10.2 does not transition to the lock-screen state immediately upon being woken from sleep, which allows physically proximate attackers to obtain sensitive information by reading the screen.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-8827
• https://exchange.xforce.ibmcloud.com/vulnerabilities/100521
• http://lists.apple.com/archives/security-announce/2015/Jan/msg00003.html
• http://support.apple.com/HT204244
• http://www.securitytracker.com/id/1031650