CVE-2024-44183
📋 TL;DR
A logic error in Apple operating systems allows an app to cause a denial-of-service (DoS) by exploiting improper error handling. This vulnerability affects users of macOS, iOS, iPadOS, visionOS, watchOS, and tvOS who have not updated to the patched versions. The issue could lead to system instability or crashes.
💻 Affected Systems
- macOS
- iOS
- iPadOS
- visionOS
- watchOS
- tvOS
📦 What is this software?
Ipados by Apple
Macos by Apple
macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...
Learn more about Macos →Macos by Apple
macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...
Learn more about Macos →Tvos by Apple
Watchos by Apple
⚠️ Risk & Real-World Impact
Worst Case
An app could trigger a system-wide crash or persistent DoS, rendering the device unusable until reboot or recovery.
Likely Case
A malicious app causes temporary service disruption, such as app crashes or system freezes, requiring user intervention.
If Mitigated
With proper app sandboxing and security controls, impact is limited to isolated app failures without broader system effects.
🎯 Exploit Status
No public proof-of-concept known; exploitation likely requires malicious app development and user installation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Ventura 13.7, iOS 17.7, iPadOS 17.7, visionOS 2, watchOS 11, macOS Sequoia 15, iOS 18, iPadOS 18, macOS Sonoma 14.7, tvOS 18
Vendor Advisory: https://support.apple.com/en-us/121234
Restart Required: Yes
Instructions:
1. Go to Settings > General > Software Update on iOS/iPadOS/watchOS/tvOS/visionOS or System Preferences > Software Update on macOS. 2. Download and install the latest update. 3. Restart the device as prompted.
🔧 Temporary Workarounds
Restrict App Installation
allLimit app installations to trusted sources like the App Store to reduce risk of malicious apps.
🧯 If You Can't Patch
- Monitor for unusual app behavior or crashes and isolate affected devices.
- Implement application allowlisting to block untrusted apps from running.
🔍 How to Verify
Check if Vulnerable:
Check the OS version against affected versions listed; if older, the system is vulnerable.Check Version:
On macOS: 'sw_vers -productVersion'; On iOS/iPadOS: Settings > General > About > Version; On others, check in device settings.Verify Fix Applied:
Confirm the OS version matches or exceeds the patched versions after update.📡 Detection & Monitoring
Log Indicators:
- System logs showing app crashes, kernel panics, or error messages related to logic handling.
Network Indicators:
- No direct network indicators; focus on app installation sources.
SIEM Query:
Search for events like 'app crash', 'DoS', or 'kernel panic' in system logs on Apple devices.🔗 References
- https://support.apple.com/en-us/121234
- https://support.apple.com/en-us/121238
- https://support.apple.com/en-us/121240
- https://support.apple.com/en-us/121246
- https://support.apple.com/en-us/121247
- https://support.apple.com/en-us/121248
- https://support.apple.com/en-us/121249
- https://support.apple.com/en-us/121250
- http://seclists.org/fulldisclosure/2024/Sep/32
- http://seclists.org/fulldisclosure/2024/Sep/33
- http://seclists.org/fulldisclosure/2024/Sep/36
- http://seclists.org/fulldisclosure/2024/Sep/40
- http://seclists.org/fulldisclosure/2024/Sep/41
