CVE-2024-21473
📋 TL;DR
This vulnerability allows memory corruption when redirecting log files to arbitrary locations with arbitrary filenames in Qualcomm components. It affects devices using Qualcomm chipsets and software. Attackers could exploit this to execute arbitrary code or cause denial of service.
💻 Affected Systems
- Qualcomm chipsets and associated software/firmware
📦 What is this software?
Snapdragon X65 5g Modem Rf Firmware by Qualcomm
View all CVEs affecting Snapdragon X65 5g Modem Rf Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or persistent backdoor installation.
Likely Case
Application crash or denial of service affecting device functionality.
If Mitigated
Limited impact with proper input validation and memory protections in place.
🎯 Exploit Status
CVSS 9.8 suggests critical severity with high attack vector (network) and low attack complexity, but specific exploit details are not publicly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Qualcomm April 2024 security bulletin for specific patched versions.
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2024-bulletin.html
Restart Required: Yes
Instructions:
1. Check Qualcomm April 2024 security bulletin for affected components. 2. Apply firmware/software updates from device manufacturer. 3. Reboot device after update.
🔧 Temporary Workarounds
Restrict log redirection
allDisable or restrict ability to redirect log files to arbitrary locations.
Configuration specific to system; consult vendor documentation.
Input validation enhancement
allImplement strict validation on log file path and name parameters.
Requires code changes; not a simple command-line workaround.
🧯 If You Can't Patch
- Isolate affected systems from untrusted networks.
- Implement strict access controls and monitor for unusual log redirection attempts.
🔍 How to Verify
Check if Vulnerable:
Check device firmware/software version against Qualcomm April 2024 bulletin affected versions list.Check Version:
Device-specific; typically 'cat /proc/version' or vendor-specific commands on Linux/Android systems.Verify Fix Applied:
Verify installed firmware/software version matches or exceeds patched versions listed in Qualcomm bulletin.📡 Detection & Monitoring
Log Indicators:
- Unusual log file redirection attempts
- Memory corruption errors in system logs
Network Indicators:
- Unexpected network traffic to/from affected components
SIEM Query:
Search for memory corruption errors (segfaults, access violations) in system logs related to log handling processes.