Apple this week rolled out two Safari updates for several versions of OS X addressing around two dozen WebKit flaws that Sophos deems as highly important. According to the companys security evangelist Paul Ducklin, Safari 7.0.4 and Safari 6.1.4 are must-install updates.Security advisor Paul Ducklin writes on the Sophos Naked Security blog that Apples Safari 7.0.4 update closes a total of 22 vulnerabilities, including 21 listed under arbitrary code execution.&…