CVE-2024-49837
📋 TL;DR
This vulnerability allows memory corruption during guest virtual machine suspend operations in Qualcomm hypervisors. Attackers could potentially execute arbitrary code or cause denial of service on affected systems. This primarily affects devices using Qualcomm chipsets with virtualization features enabled.
💻 Affected Systems
- Qualcomm hypervisors on various chipsets
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing arbitrary code execution at hypervisor level, potentially leading to host escape from guest VMs
Likely Case
System crash or denial of service affecting virtual machine operations
If Mitigated
Limited impact with proper isolation and minimal virtualization usage
🎯 Exploit Status
Requires access to trigger guest VM suspend operations; memory corruption vulnerabilities can be challenging to weaponize reliably
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Qualcomm February 2025 security bulletin for specific patched versions
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/february-2025-bulletin.html
Restart Required: No
Instructions:
1. Check Qualcomm February 2025 security bulletin for affected chipsets. 2. Obtain firmware updates from device manufacturer. 3. Apply hypervisor/firmware updates following manufacturer instructions. 4. Verify update completion.
🔧 Temporary Workarounds
Disable virtualization features
allDisable hypervisor and virtualization capabilities if not required
Limit VM suspend operations
allRestrict which users/processes can trigger VM suspend operations
🧯 If You Can't Patch
- Isolate affected systems from untrusted networks and users
- Implement strict access controls for VM management operations
🔍 How to Verify
Check if Vulnerable:
Check chipset model and firmware version against Qualcomm's February 2025 security bulletinCheck Version:
Device-specific commands vary by manufacturer; typically check firmware version in system settings or via manufacturer toolsVerify Fix Applied:
Verify firmware version matches patched versions listed in Qualcomm advisory📡 Detection & Monitoring
Log Indicators:
- Unexpected VM suspend operations
- Hypervisor crashes or memory corruption errors
- System instability during VM operations
Network Indicators:
- Unusual VM management traffic patterns
SIEM Query:
Search for hypervisor crash logs, VM suspend anomalies, or memory corruption events in system logs