CVE-2023-43532
📋 TL;DR
This vulnerability allows memory corruption when reading ACPI configuration through user mode applications on Qualcomm chipsets. Attackers could potentially execute arbitrary code or cause denial of service. Affected systems include devices with vulnerable Qualcomm components.
💻 Affected Systems
- Qualcomm chipsets with ACPI functionality
📦 What is this software?
Snapdragon 7c\+ Gen 3 Compute Firmware by Qualcomm
View all CVEs affecting Snapdragon 7c\+ Gen 3 Compute Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or persistent backdoor installation.
Likely Case
Local privilege escalation allowing attackers to gain elevated privileges on the affected system.
If Mitigated
Denial of service or system instability if exploitation attempts are blocked by security controls.
🎯 Exploit Status
Exploitation requires local access to trigger the memory corruption through user mode ACPI configuration reading.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Qualcomm February 2024 security bulletin for specific patched versions
Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/february-2024-bulletin
Restart Required: Yes
Instructions:
1. Check Qualcomm February 2024 security bulletin for affected chipsets. 2. Apply firmware/software updates from device manufacturer. 3. Reboot system after update.
🔧 Temporary Workarounds
Restrict ACPI configuration access
linuxLimit user mode application access to ACPI configuration interfaces
# Review and restrict permissions to /sys/firmware/acpi/ and related interfaces
🧯 If You Can't Patch
- Implement strict access controls to limit which users/applications can access ACPI configuration
- Monitor system logs for unusual ACPI access patterns or memory corruption events
🔍 How to Verify
Check if Vulnerable:
Check chipset version against Qualcomm's February 2024 security bulletin for affected componentsCheck Version:
# For Linux: cat /proc/cpuinfo | grep -i qualcommVerify Fix Applied:
Verify firmware/software version has been updated to patched version specified in Qualcomm advisory📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs, memory corruption errors, unusual ACPI access patterns
Network Indicators:
- Not network exploitable - local vulnerability
SIEM Query:
Search for kernel logs containing 'ACPI', 'memory corruption', or 'segmentation fault' from user mode applications