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iOS 15.7.4 Update for Older Devices Fixes Actively Exploited Vulnerability

iOS 15.7.4 Update for Older Devices Fixes Actively Exploited Vulnerability

In addition to the iOS 16.4 and iPadOS 16.4 updates, Apple on Monday also released the iOS 15.7.4 and iPadOS 15.7.4 updates, for older devices that are not able to be upgraded to the latest iOS and iPadOS software.

Owners of older iPhones or iPads should download and install the software as soon as possible, as it includes important security fixes for a security vulnerability that is already being exploited.

Apple’s release notes for the security update say it addresses a long list of vulnerabilities, including a WebKit vulnerability that was known to be actively exploited.

From Apple’s security support document:

Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

iOS 15.7.4 and iPadOS 15.7.4

Released March 27, 2023

Accessibility

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: An app may be able to access information about a user’s contacts

Description: A privacy issue was addressed with improved private data redaction for log entries.

CVE-2023-23541: Csaba Fitzl (@theevilbit) of Offensive Security

Calendar

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: Importing a maliciously crafted calendar invitation may exfiltrate user information

Description: Multiple validation issues were addressed with improved input sanitization.

CVE-2023-27961: Rıza Sabuncu (@rizasabuncu)

Camera

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: A sandboxed app may be able to determine which app is currently using the camera

Description: The issue was addressed with additional restrictions on the observability of app states.

CVE-2023-23543: Yiğit Can YILMAZ (@yilmazcanyigit)

CommCenter

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: An app may be able to cause unexpected system termination or write kernel memory

Description: An out-of-bounds write issue was addressed with improved input validation.

CVE-2023-27936: Tingting Yin of Tsinghua University

Find My

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: An app may be able to read sensitive location information

Description: A privacy issue was addressed with improved private data redaction for log entries.

CVE-2023-23537: an anonymous researcher

FontParser

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: Processing a maliciously crafted image may result in disclosure of process memory

Description: The issue was addressed with improved memory handling.

CVE-2023-27956: Ye Zhang of Baidu Security

Identity Services

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: An app may be able to access information about a user’s contacts

Description: A privacy issue was addressed with improved private data redaction for log entries.

CVE-2023-27928: Csaba Fitzl (@theevilbit) of Offensive Security

ImageIO

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution

Description: An out-of-bounds read was addressed with improved bounds checking.

CVE-2023-27946: Mickey Jin (@patch1t)

ImageIO

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: Processing a maliciously crafted image may result in disclosure of process memory

Description: The issue was addressed with improved memory handling.

CVE-2023-23535: ryuzaki

Kernel

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: An app may be able to disclose kernel memory

Description: A validation issue was addressed with improved input sanitization.

CVE-2023-27941: Arsenii Kostromin (0x3c3e)

Kernel

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: An app may be able to execute arbitrary code with kernel privileges

Description: A use after free issue was addressed with improved memory management.

CVE-2023-27969: Adam Doupé of ASU SEFCOM

Model I/O

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution

Description: An out-of-bounds read was addressed with improved input validation.

CVE-2023-27949: Mickey Jin (@patch1t)

NetworkExtension

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: A user in a privileged network position may be able to spoof a VPN server that is configured with EAP-only authentication on a device

Description: The issue was addressed with improved authentication.

CVE-2023-28182: Zhuowei Zhang

Shortcuts

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: A shortcut may be able to use sensitive data with certain actions without prompting the user

Description: The issue was addressed with additional permissions checks.

CVE-2023-27963: Jubaer Alnazi Jabin of TRS Group Of Companies, and Wenchao Li and Xiaolong Bai of Alibaba Group

WebKit

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: A website may be able to track sensitive user information

Description: The issue was addressed by removing origin information.

WebKit Bugzilla: 250837
CVE-2023-27954: an anonymous researcher

WebKit

Available for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

Impact: Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Description: A type confusion issue was addressed with improved checks.

WebKit Bugzilla: 251944
CVE-2023-23529: an anonymous researcher

The iOS 15.7.4 and iPadOS 15.7.4 updates are available for all ‌iPhone‌ 6s models, all ‌iPhone‌ 7 models, the first-generation iPhone SE, the iPad Air 2, the fourth-generation iPad mini, and the seventh-generation iPod touch.