CVE-2024-38418
📋 TL;DR
This vulnerability allows memory corruption through improper handling of memory map information in IOCTL calls. Attackers could potentially execute arbitrary code or cause denial of service. This affects systems using Qualcomm components with vulnerable drivers.
💻 Affected Systems
- Qualcomm chipsets and associated drivers
📦 What is this software?
Snapdragon 8 Gen 1 Mobile Firmware by Qualcomm
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Snapdragon 865 5g Mobile Firmware by Qualcomm
Snapdragon 865 5g Mobile Firmware by Qualcomm
Snapdragon 870 5g Mobile Firmware by Qualcomm
Snapdragon Auto 4g Modem Firmware by Qualcomm
Snapdragon W5\+ Gen 1 Wearable Firmware by Qualcomm
View all CVEs affecting Snapdragon W5\+ Gen 1 Wearable Firmware →
Snapdragon X55 5g Modem Rf Firmware by Qualcomm
View all CVEs affecting Snapdragon X55 5g Modem Rf Firmware →
Video Collaboration Vc1 Platform Firmware by Qualcomm
View all CVEs affecting Video Collaboration Vc1 Platform Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Local privilege escalation to kernel-level access, allowing complete system compromise and persistence.
Likely Case
Local denial of service through system crashes or instability from memory corruption.
If Mitigated
Limited impact with proper access controls preventing unauthorized users from making IOCTL calls.
🎯 Exploit Status
Requires local access and ability to make specific IOCTL calls; memory corruption exploitation requires additional steps.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Qualcomm February 2025 security bulletin for specific patched versions.
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/february-2025-bulletin.html
Restart Required: No
Instructions:
1. Check Qualcomm advisory for affected chipset/driver versions. 2. Apply vendor-provided patches or firmware updates. 3. Update device firmware through manufacturer channels.
🔧 Temporary Workarounds
Restrict IOCTL access
allLimit access to vulnerable IOCTL interfaces using SELinux/AppArmor policies or device permissions.
🧯 If You Can't Patch
- Implement strict access controls to prevent unauthorized users from accessing device drivers.
- Monitor for unusual IOCTL calls or system crashes that might indicate exploitation attempts.
🔍 How to Verify
Check if Vulnerable:
Check device chipset and driver versions against Qualcomm's advisory; examine /proc/version or vendor-specific version files.Check Version:
cat /proc/version or check manufacturer's device information settings.Verify Fix Applied:
Verify updated firmware/driver versions match patched versions in Qualcomm advisory.📡 Detection & Monitoring
Log Indicators:
- Kernel panics, system crashes, unusual IOCTL call patterns in kernel logs.
Network Indicators:
- Not network exploitable; focus on local system behavior.
SIEM Query:
Search for kernel logs containing 'panic', 'Oops', or specific driver crash messages.