Apple has issued the security updates to patch the shell shock bug discovered in various Operating system like UNIX and many more which use Bash. After the discovery of the shell shock bug which allows hackers to get the complete control of the effected computer or the Network device.
Apple made an announcement that normal users of its Mac OS X operating system would not be affected by the vulnerability. The users will definitely face the problems who enables this advanced UNIX services on their Macs.
Now Apple has released patches for Mavericks, lion and Mountain Lion under the OS X bash update 1.0 name which fix this vulnerability. The upcoming OS X Yosemite. Any how this has not received the patch but it can be expected to be integrated in the next test build of Operating system. Actually this update has separate downloads, depending on which version of the OS X operating system your Mac is currently running, whether it’s Lion, Mountain Lion, or Mavericks.
Even though most Linux Operating system distros now Mac OS X has been updated to the fix the shell shock vulnerability, there are many more devices which are unpatched and the users should be aware of various updates due to severity of security flaws.