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Apple Patches Dozens of Vulnerabilities Across Product Lines

Apple this week released a new set of security patches to address tens of vulnerabilities impacting macOS, iOS, watchOS, and t

Apple this week released a new set of security patches to address tens of vulnerabilities impacting macOS, iOS, watchOS, and tvOS, as well as Windows software.

Over 40 security bugs were fixed with the release of iOS 11.3 on Thursday. The bugs affect iPhone 5s and later, iPad Air and later, and iPod touch 6th generation.

WebKit was affected the most, with a total of 19 issues resolved. Components such as CoreFoundation, CoreText, File System Events, iCloud Drive, Kernel, Mail, PluginKit, Safari, Security, and Storage were impacted as well.

Exploitation of these flaws could result in an attacker being able to run arbitrary code on the vulnerable device, in malicious applications elevating their privileges, user interface spoofing, data exfiltration, interception of encrypted email contents, denial of service, keylogging, the disabling of features on the device, or in causing device restarts.

Multiple memory corruption issues discovered in WebKit could lead to arbitrary code execution when processing maliciously crafted web content. The bugs, 16 in total, were addressed with improved memory handling.

Apple resolved 35 vulnerabilities with the release of macOS High Sierra 10.13.4, Security Update 2018-002 Sierra, and Security Update 2018-002 El Capitan. The issues impact OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.3.

Affected components include Admin Framework, APFS, CoreFoundation, CoreText, CoreTypes, Disk Images, Disk Management, File System Events, iCloud Drive, Intel Graphics Driver, Kernel, LaunchServices, Mail, Notes, PluginKit, Security, System Preferences, and Terminal.

Exploitation of these issues could lead to exposed passwords, disclosed user information, elevation of privilege, denial of service, arbitrary code execution, reading of restricted memory, code signing enforcement bypass, interception and exfiltration of encrypted email contents, arbitrary command execution spoofing, and keylogging.

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Released on Thursday for OS X El Capitan 10.11.6, macOS Sierra 10.12.6, and macOS High Sierra 10.13.4, Safari 11.1 patches 23 flaws that could lead to address bar spoofing, exfiltration of autofilled data without explicit user interaction, arbitrary code execution, cross-site scripting, ASSERT failure, d
enial of service, and websites exfiltrating data cross-origin.

Of the 23 vulnerabilities, 2 were found in Safari, 1 in Safari Login AutoFill, while the remaining 20 impact WebKit.

A total of 28 bugs were resolved with the release of tvOS 11.3, impacting Apple TV 4K and Apple TV (4th generation). Affected components include WebKit, Kernel, CoreFoundation, CoreText, File System Events, NSURLSession, Quick Look, Security, and System Preferences.

watchOS 4.3 fixes 22 vulnerabilities in CoreFoundation, CoreText, File System Events, Kernel, NSURLSession, Quick Look, Security, System Preferences, and WebKit. All Apple Watch models are impacted by the bugs.

The tech giant also addressed multiple issues in LLVM with the release of Xcode 9.3. The bugs impact macOS High Sierra 10.13.2 or later.

iCloud for Windows 7.4 patches 20 vulnerabilities, 19 of which impact WebKit, the same as iTunes 12.7.4 for Windows does. The bugs could lead to arbitrary code execution, elevation of privileges, ASSERT failure, denial of service, or malicious websites exfiltrating data cross-origin.

Related: macOS High Sierra Logs External Volume Passwords in Plaintext

Related: Apple Fixes Indian Character Crash Bug in iOS, macOS

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

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