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Apple releases Lion OS X 10.7.4 to address security issues and bug fixes

Yesterday, Wednesday, May 9, 2012, Apple released OS X Lion 10.7.4 to address security issues and bug fixes. This update is recommended for all users of Lion to improve the stability, compatibility, and security of your system.

The security updates included many items. However, the most publicized patched was for a flaw that allowed remote admins and persons with physical access to the system to obtain account information.

This flaw was introduced in OS X 10.7.3 and the effected only those using Legacy File Vault. For those effected, logs would contain sensitive information such as passwords in a visible format. For more information on this security bug, check out the article on TUAW.

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Interestingly enough, when viewing the details of the update in Software Update, users would see the list of bug fixes and were directed to an Apple webpage for the more extensive security updates.

The bug fixes include the following:

  • Resolve an issue in which the "Reopen windows when logging back in" setting is always enabled.
  • Improve compatibility with certain British third-party USB keyboards.
  • Addresses permission issues that may be caused if you use the Get Info inspector function "Apply to enclosed items…" on your home directory. For more information, see this article.
  • Improve Internet sharing of PPPoE connections.
  • Improve using a proxy auto-configuration (PAC) file.
  • Address an issue that may prevent files from being saved to an SMB server.
  • Improve printing to an SMB print queue.
  • Improve performance when connecting to a WebDAV server.
  • Enable automatic login for NIS accounts.
  • Include RAW image compatibility for additional digital cameras.
  • Improve the reliability of binding and logging into Active Directory accounts.
The OS X Lion 10.7.4 update also includes Safari 5.1.6, which contains stability improvements. If another update is run from System Preferences and Software Update after the 10.7.4 installation, Safari 5.1.7 will also available.


Running Software Update under System Preferences will start the update process. The update can be around 729 MB. Though its been noticed that some updates may be smaller in size and around the 329 MB size. A standalone installer (692 MB) and a combo updater (1.4 GB) are available as well on Apple’s website.

Be sure to update your system soon.




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