CVE-2024-33036
📋 TL;DR
This CVE describes a memory corruption vulnerability in Qualcomm camera drivers where a user-space variable is used for kernel memory allocation, potentially leading to buffer overflows or invalid memory access. Attackers could exploit this to execute arbitrary code or cause denial of service. Affected systems include devices using vulnerable Qualcomm chipsets with camera functionality.
💻 Affected Systems
- Qualcomm Snapdragon chipsets with camera drivers
📦 What is this software?
Snapdragon 8 Gen 1 Mobile Platform Firmware by Qualcomm
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Snapdragon 865 5g Mobile Platform Firmware by Qualcomm
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Snapdragon 865 5g Mobile Platform Firmware by Qualcomm
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Snapdragon 870 5g Mobile Platform Firmware by Qualcomm
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Snapdragon W5\+ Gen 1 Wearable Platform Firmware by Qualcomm
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Snapdragon X55 5g Modem Rf System Firmware by Qualcomm
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Snapdragon Xr2 5g Platform Firmware by Qualcomm
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Video Collaboration Vc1 Platform Firmware by Qualcomm
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⚠️ Risk & Real-World Impact
Worst Case
Kernel privilege escalation leading to full system compromise, arbitrary code execution at kernel level, or permanent device bricking.
Likely Case
Local privilege escalation from user to kernel space, application crashes, or system instability requiring reboot.
If Mitigated
Denial of service through application crashes if exploit attempts are blocked by security controls.
🎯 Exploit Status
Requires local access and ability to interact with camera driver. No public exploit code known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Qualcomm December 2024 security bulletin for specific chipset updates
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/december-2024-bulletin.html
Restart Required: Yes
Instructions:
1. Check Qualcomm advisory for affected chipset. 2. Obtain firmware/OS update from device manufacturer. 3. Apply update following manufacturer instructions. 4. Reboot device to load patched driver.
🔧 Temporary Workarounds
Disable camera functionality
linuxTemporarily disable camera hardware/driver to prevent exploitation
echo 'blacklist camera_driver_module' >> /etc/modprobe.d/blacklist.conf
rmmod camera_driver_module
Restrict camera permissions
linuxLimit which applications can access camera hardware
chmod 600 /dev/camera*
setenforce 1 (if SELinux enabled)
🧯 If You Can't Patch
- Implement strict application whitelisting to prevent malicious camera access
- Use kernel hardening features like SELinux/AppArmor to restrict driver interactions
🔍 How to Verify
Check if Vulnerable:
Check Qualcomm chipset version and compare against December 2024 security bulletin. Review dmesg for camera driver errors.Check Version:
cat /proc/cpuinfo | grep -i qualcomm && uname -rVerify Fix Applied:
Verify kernel/driver version matches patched version from manufacturer. Test camera functionality works without crashes.📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages
- Camera driver crash logs
- Unexpected memory allocation failures in kernel logs
Network Indicators:
- None - local exploitation only
SIEM Query:
source="kernel" AND ("camera" OR "sensor") AND ("panic" OR "corruption" OR "allocation failed")