CVE-2022-22065
📋 TL;DR
This vulnerability is an out-of-bounds read in the WLAN HOST component of Qualcomm Snapdragon chipsets due to improper length checking. It affects multiple Qualcomm Snapdragon product lines including Auto, Compute, Mobile, Wearables, and IoT devices. Successful exploitation can lead to denial of service (DoS) conditions.
💻 Affected Systems
- Snapdragon Auto
- Snapdragon Compute
- Snapdragon Connectivity
- Snapdragon Consumer Electronics Connectivity
- Snapdragon Consumer IoT
- Snapdragon Industrial IoT
- Snapdragon Mobile
- Snapdragon Voice & Music
- Snapdragon Wearables
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system crash or persistent DoS requiring hardware reset, potentially affecting critical systems in automotive or industrial IoT applications.
Likely Case
Temporary service disruption, device instability, or crashes requiring reboot in affected mobile, IoT, or embedded devices.
If Mitigated
Minimal impact with proper network segmentation and access controls limiting exposure to malicious traffic.
🎯 Exploit Status
Exploitation requires sending specially crafted packets to the WLAN interface. No authentication needed but requires network proximity/access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Qualcomm's May 2022 security bulletin for specific patched firmware versions
Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/may-2022-bulletin
Restart Required: Yes
Instructions:
1. Check device manufacturer for firmware updates. 2. Apply Qualcomm-provided firmware patches. 3. Reboot device. 4. Verify patch installation through version checks.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected devices from untrusted networks to prevent malicious packet injection.
WLAN Access Control
allImplement strict WLAN authentication and MAC filtering to limit potential attackers.
🧯 If You Can't Patch
- Segment affected devices on isolated network segments with strict firewall rules
- Disable WLAN functionality if not required, use wired connectivity instead
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against Qualcomm's advisory. Use 'cat /proc/version' or device-specific firmware version commands on Linux-based systems.Check Version:
Device-specific; typically 'cat /proc/version' or OEM-provided version checking utilities.Verify Fix Applied:
Verify firmware version matches patched versions from Qualcomm's bulletin. Test WLAN functionality for stability.📡 Detection & Monitoring
Log Indicators:
- Kernel panics
- WLAN driver crashes
- System reboots without clear cause
- High rate of WLAN errors
Network Indicators:
- Unusual WLAN traffic patterns
- Malformed 802.11 packets
- DoS conditions on affected devices
SIEM Query:
Search for: (event_category:"kernel" OR "driver") AND (message:"panic" OR "crash" OR "oops") AND (component:"wlan" OR "wireless")