CVE-2024-43057
📋 TL;DR
CVE-2024-43057 is a use-after-free vulnerability in the Glink Linux driver that allows memory corruption when processing commands. This could enable local privilege escalation or denial of service attacks. Affected systems include Qualcomm-based devices running vulnerable Linux kernel versions.
💻 Affected Systems
- Qualcomm chipsets with Glink Linux driver
📦 What is this software?
Snapdragon Auto 5g Modem Rf Gen 2 Firmware by Qualcomm
View all CVEs affecting Snapdragon Auto 5g Modem Rf Gen 2 Firmware →
Snapdragon W5\+ Gen 1 Wearable Firmware by Qualcomm
View all CVEs affecting Snapdragon W5\+ Gen 1 Wearable Firmware →
Video Collaboration Vc1 Platform Firmware by Qualcomm
View all CVEs affecting Video Collaboration Vc1 Platform Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Local attacker gains kernel-level privileges, leading to complete system compromise, data theft, or persistent backdoor installation.
Likely Case
Local privilege escalation allowing attackers to execute arbitrary code with elevated permissions or cause system crashes.
If Mitigated
Limited to denial of service if proper isolation and privilege separation are implemented.
🎯 Exploit Status
Requires local access and knowledge of memory layout; typical of use-after-free vulnerabilities in kernel drivers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patches included in March 2025 Qualcomm security bulletin
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/march-2025-bulletin.html
Restart Required: Yes
Instructions:
1. Check Qualcomm security bulletin for specific patch details. 2. Apply kernel/driver updates from device manufacturer. 3. Reboot system to load patched driver.
🔧 Temporary Workarounds
Restrict local user access
linuxLimit local shell access to trusted users only
Disable unnecessary Glink features
linuxIf possible, disable unused Glink communication channels
🧯 If You Can't Patch
- Implement strict access controls to prevent untrusted local users
- Monitor for privilege escalation attempts and kernel crashes
🔍 How to Verify
Check if Vulnerable:
Check kernel/driver version against Qualcomm security bulletin; examine dmesg for Glink driver versionCheck Version:
uname -r && dmesg | grep -i glinkVerify Fix Applied:
Verify kernel/driver version matches patched version from manufacturer; check that March 2025 patches are applied📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Use-after-free warnings in kernel logs
- Unexpected privilege escalation
Network Indicators:
- None (local exploit only)
SIEM Query:
source="kernel" AND ("use-after-free" OR "glink" OR "kernel panic")