CVE-2013-5187 Information

Description

The Screen Lock implementation in Apple Mac OS X before 10.9 does not immediately accept Keychain Status menu Lock Screen commands and instead incorrectly relies on a certain timeout setting which allows physically proximate attackers to obtain sensitive information by reading a screen that should have transitioned into the locked state.

Reference

http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html