CVE-2024-27380
📋 TL;DR
This vulnerability in Samsung Exynos mobile processors allows attackers to read heap memory beyond allocated boundaries through a missing input validation check in the slsi_set_delayed_wakeup_type() function. It affects devices using Exynos 980, 850, 1280, 1380, and 1330 chipsets. Attackers can potentially leak sensitive information from kernel memory.
💻 Affected Systems
- Samsung Mobile Processor Exynos 980
- Samsung Mobile Processor Exynos 850
- Samsung Mobile Processor Exynos 1280
- Samsung Mobile Processor Exynos 1380
- Samsung Mobile Processor Exynos 1330
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Information disclosure of kernel memory contents including sensitive data, cryptographic keys, or pointers that could enable further exploitation.
Likely Case
Limited information leakage from kernel heap memory, potentially exposing system state information or partial memory contents.
If Mitigated
No impact if patched or if exploit attempts are blocked by security controls.
🎯 Exploit Status
Requires local code execution capability and knowledge of kernel memory layout. No public exploit code available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Security patches from Samsung (specific version depends on device model and Android version)
Vendor Advisory: https://semiconductor.samsung.com/support/quality-support/product-security-updates/
Restart Required: Yes
Instructions:
1. Check for security updates in device settings. 2. Apply latest Samsung security patch. 3. Reboot device after installation.
🔧 Temporary Workarounds
Restrict ioctl access
linuxLimit access to the vulnerable ioctl interface through SELinux policies or kernel module restrictions
🧯 If You Can't Patch
- Implement strict application sandboxing to limit local code execution capabilities
- Monitor for suspicious ioctl calls from user applications
🔍 How to Verify
Check if Vulnerable:
Check device processor model in Settings > About Phone > Hardware Information, then verify if security patch level is older than March 2024Check Version:
getprop ro.boot.hardware (on Android devices via ADB)Verify Fix Applied:
Verify security patch level is March 2024 or newer in Settings > About Phone > Software Information📡 Detection & Monitoring
Log Indicators:
- Kernel logs showing heap corruption warnings
- SELinux denials for ioctl operations
Network Indicators:
- No network indicators - local vulnerability only
SIEM Query:
No specific SIEM query - monitor for kernel panic logs or abnormal process behavior