CVE-2024-27383
📋 TL;DR
A heap overflow vulnerability in Samsung Exynos mobile processors allows attackers to overwrite heap memory by sending unvalidated data to the slsi_get_scan_extra_ies() function. This affects Samsung devices using Exynos 980, 850, 1280, 1380, and 1330 chipsets, potentially enabling arbitrary code execution or system crashes.
💻 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
Full device compromise with kernel-level code execution, allowing complete control over affected Samsung mobile devices.
Likely Case
Device instability, crashes, or denial of service through heap corruption, potentially leading to privilege escalation.
If Mitigated
Limited impact if patched or if exploit attempts are blocked by security controls, though device may still experience instability.
🎯 Exploit Status
Exploitation requires sending specially crafted data to the vulnerable function, which may be accessible via local or network vectors depending on device configuration.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Samsung security updates for specific device models
Vendor Advisory: https://semiconductor.samsung.com/support/quality-support/product-security-updates/
Restart Required: Yes
Instructions:
1. Check for Samsung security updates in device settings. 2. Apply the latest available security patch. 3. Reboot device after installation.
🔧 Temporary Workarounds
Disable Wi-Fi when not needed
androidReduces attack surface by disabling the vulnerable Wi-Fi component
Use trusted networks only
androidLimit Wi-Fi connections to known, secure networks to reduce exposure
🧯 If You Can't Patch
- Isolate affected devices from untrusted networks
- Monitor for unusual device behavior or crashes
🔍 How to Verify
Check if Vulnerable:
Check device model and chipset in Settings > About phone, then verify against affected Exynos modelsCheck Version:
Not applicable via command line on consumer devicesVerify Fix Applied:
Check security patch level in Settings > About phone > Software information and ensure it's after the vulnerability disclosure date📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Wi-Fi driver crash reports
- Unexpected system reboots
Network Indicators:
- Unusual Wi-Fi scan requests
- Malformed network packets targeting Wi-Fi interfaces
SIEM Query:
Not typically applicable for mobile device monitoring