Apple releases macOS High Sierra 10.13.3 and iOS 11.2.5

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Previously, Apple released patches for High Sierra, which left Sierra and El Capitan not protection.

This update also fixes other serious security vulnerabilities, including an issue that could cause an application to run arbitrary code using kernel privileges by exploiting a vulnerability on the IOHIDFamily API.

APPLE'S FINEST have rolled out fresh security update to secure older versions of macOS against the Meltdown processor bug.

In them, we learn that all four updates resolve kernel-related vulnerabilities discovered by Jann Horn of Google Project Zero, the researcher responsible for finding the Meltdown and Spectre vulnerabilities (see "Apple Releases Meltdown and Spectre Info and Updates", 5 January 2018). One fixes a problem that could cause Messages conversations to be listed out of order, and another corrects a bug that could cause your Mac to freeze when connected to an SMB server. The memory corruption bug allows remote code execution attacks simply by processing a maliciously crafted audio file.

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A wise person once said, "don't upgrade to the latest OS X until it's been patched a few times".

Some people might be a bit miffed about why Apple left older version of macOS out of the first patch, and such a move could fuel conspiracies around Apple forcing people to move to its latest systems and tech. Enter your Apple ID credentials in the provided box. Launch the App Store on your Mac and search for "macOS" (go directly to this link for macOS High Sierra).

Once downloaded, an information window will pop up on your screen.