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Apple releases Mac OS X 10.5.1 Update

updated 02:00 pm EST, Thu November 15, 2007

Mac OS X 10.5.1 Update

Following a slew of updates yesterday, Apple today released the Mac OS X 10.5.1 Update for its recently released Leopard operating system. The update brings more than a dozen fixes for AirPort, Back to My Mac, Disk Utilities, iCal, Mail, Networking, Printing, Security/Firewall, System and Finder, and Time Machine. The update is available via the Web (110MB) and the Software Update (40MB). In addition to the bug fixes, Apple also said that the update fixes three security flaws in the firewall.

In addition to the bug fixes, Apple also said that the update fixes three security flaws in the firewall. Apple noted that the "Block all incoming connections" setting for the firewall is misleading and changed it to "Allow Essential Connections," as it allows any process running as user "root" (UID 0) to receive incoming connections, and also allows mDNSResponder to receive connections. Apple said the update limits the processes permitted to receive incoming connections under this setting to a small fixed set of system services: configd (for DHCP and other network configuration protocols), mDNSResponder (for Bonjour), and racoon (for IPSec).

Apple also notes that the updates fixes an issue in the new operating system where processes running as user "root" (UID 0) cannot be blocked when the firewall is set to "Set access for specific services and applications". It corrects the issue so that any executable so marked is blocked. This issue does not affect systems prior to Mac OS X v10.5.

Finally, the update also fixes an issue where changes to Application Firewall settings do not affect processes started by launchd until they are restarted, making so that changes take effect immediately.

Apple also said that update now allows password-protected accounts on AirPort Disks to show up on in the Finder's Shared Sidebar and resolves an issue with saved passwords for wireless networks. Other fixes include

Back to My Mac

  • Improves the reliability of Back to My Mac-enabled Macs appearing in the Finder's Shared Sidebar.
  • Improves compatibility with D-Link NAT gateways.

    Disk utilities

  • Restores the functionality of the progress bar during permission repairs in Disk Utility.
  • Addresses an issue that could produce an alert when creating disk images using Disk Utility or Terminal.
  • Improves disk partitioning when multiple RAID sets are created on the same disk.


  • iCal alarms are now more reliably delivered via email.
  • Resolves an issue when inviting attendees via a CalDAV account.


  • Improves stability when resizing columns in the message viewer or switching between Stationery templates in email messages.
  • Addresses an issue in which attachments enclosed inside an HTML link may not be clickable in email messages.
  • Fixes an issue with email accounts added using the "Simple Setup" feature in which messages cannot be sent due to an SMTP connection failure.
  • Improves Smart Mailboxes compatibility with .Mac Sync, and addresses an issue with To Do's disappearing when using Smart Mailboxes.
  • Resolves an issue with syncing Mail accounts with .Mac in which multiple On My Mac folders appear in the Mailbox pane.


  • Addresses an issue in which Microsoft Windows shared folders may be read-only when connected via SMB.


  • Resolves an issue in which user-selected values on Paper Feed PDE are reset to default while saving a custom preset.

    Security, Firewall

  • Addresses a code signing issue; third-party applications can now run when included in the Application Firewall or when whitelisted in Parental Controls.
  • In Security preferences' Firewall tab, the "Block All" option is now called "Allow Only essential services"
  • Includes recent Apple security updates.

    System and Finder

  • Addresses a potential data loss issue when moving files across partitions in the Finder.
  • Resolves an issue with login after turning off FileVault for a specific user account.
  • Improves compatibility with Adobe Flash-based uploaders used by .Mac Web Gallery and certain other websites and applications.
  • Resolves a potential text drawing issue with certain Adobe Flash-based websites and applications.

    Time Machine

  • Addresses formatting issues with certain drives used with Time Machine (specifically, single-partition MBR drives greater than 512 GB in size as well as NTFS drives of any size and partition scheme).
  • Resolves an issue in which files restored in Time Machine may be restored to the backup hierarchy rather than the folders to which they belong.

    by MacNN Staff

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    1. Flying Meat

      Joined: Dec 1969


      hmmm. 110MB?

      Software update says 40 ish MB.

      Did a backup, installed, rebooted, posted. :)

    1. dotcom

      Joined: Dec 1969


      Me too

      Just under 40 MB download, now running 10.5.1 ... hopefully it also solves the MBP keyboard weirdness.

    1. Guest

      Joined: Dec 1969


      Re hmmm?

      Could be the difference between Intel / PPC updates. These updates have had huge size differences in the past.

    1. boazh

      Joined: Dec 1969


      cross my fingers...

      that this update will resolve my issues with Airport going down periodically. I can't wait to get home and install it. The article did not specify what was fixed with Airport...wonder why.

    1. telemart73

      Joined: Dec 1969


      so far, so good

      my Logitech VX mouse no longer hangs, it doesn't break the Cisco VPN client, and my ATT expresscard broadband still works.

      I'm hoping this fixed the MBP keyboard wonkiness, too.

    1. testudo

      Joined: Dec 1969



      That's the web-download size. The 40MB is the one from software update, which is a delta update specifically for your computer (and may not update other machines).

      And it doesn't look like they fixed all the finder issues, like the Dock, menu bar, windows, etc.

    1. jolipoli

      Joined: Dec 1969


      combo updater....

      110 MB is the combo, it updates all previous versions of the Leopard OS, all one of them!

      I always use the combo, never use the software update updater. Apple says to use the combo if you have troubles with an update, I go ahead and start with the combo.

      Everything I've tried since updating to 10.5.1 is the same if not better than 10.5. I'm preparing to move Leopard from an external drive onto the MBP drive, after moving Tiger to a disc image for archival purposes, and zeroing the drive for good luck.

    1. boazh

      Joined: Dec 1969


      didn't fix my Airport

      After applying the update my Airport on my MBP still goes down... very disappointing. I was waiting for this update...I guess it's time to go back to Tiger. My iMac's Airport is running great thank-you-very-much-apple

    1. jpellino

      Joined: Dec 1969



      I've had one less bar across the board - home and work - on any wireless connection since 10.5 anyone else notice this?

    1. jriveractu

      Joined: Dec 1969


      re: airport

      I'm facing the same issue here, jpellino . Had all the bars full back in Tiger and my iMac (running 10.4) has them too . Guess we'll have to wait and see ...

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