CVE-2023-42567
📋 TL;DR
This vulnerability allows attackers to execute arbitrary code or cause denial of service through a stack-based buffer overflow in Samsung's softsimd component. It affects Samsung mobile devices running vulnerable versions prior to the December 2023 security update. Attackers can exploit this by sending specially crafted data to trigger the overflow.
💻 Affected Systems
- Samsung mobile devices
📦 What is this software?
Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →Android by Samsung
Android is Google's open-source mobile operating system powering over 3 billion devices worldwide, including smartphones, tablets, smart TVs, automotive systems, wearables, and IoT devices. As the world's dominant mobile OS with approximately 72% global market share, Android serves as the foundation...
Learn more about Android →⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, data theft, or persistent malware installation.
Likely Case
Application crashes, denial of service, or limited code execution within the affected process context.
If Mitigated
No impact if patched; potential crashes if unpatched but with exploit mitigations like ASLR/stack canaries.
🎯 Exploit Status
Exploitation likely requires local access or malicious app installation; no public exploits known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: SMR Dec-2023 Release 1
Vendor Advisory: https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=12
Restart Required: Yes
Instructions:
1. Check for updates in device Settings > Software update. 2. Download and install December 2023 security update. 3. Reboot device after installation.
🔧 Temporary Workarounds
Disable unnecessary apps
allReduce attack surface by disabling unused applications that might trigger the vulnerability.
🧯 If You Can't Patch
- Restrict installation of untrusted applications via device policies.
- Monitor for abnormal device behavior or crashes related to media processing.
🔍 How to Verify
Check if Vulnerable:
Check device security patch level in Settings > About phone > Software information. If before December 2023, likely vulnerable.Check Version:
Not applicable via command line on standard Android; use GUI method above.Verify Fix Applied:
Verify security patch level shows 'December 1, 2023' or later after update.📡 Detection & Monitoring
Log Indicators:
- Crashes in media-related processes
- Abnormal memory access errors in system logs
Network Indicators:
- Unusual network traffic from device suggesting compromise
SIEM Query:
Not typically applicable for mobile devices; monitor MDM/EMM alerts for compromised devices.