CVE-2024-43047: Qualcomm Fastconnect Use-After-Free Flaw

CVE-2024-43047 Overview

Memory corruption while maintaining memory maps of HLOS memory. This vulnerability impacts various Qualcomm FastConnect and Snapdragon devices, posing a significant security risk.

Critical Impact

This vulnerability leads to potential elevation of privilege, data exposure, and system integrity compromise.

Affected Products

• Qualcomm FastConnect 6700 Firmware
• Qualcomm FastConnect 6800
• Qualcomm Snapdragon 888 5G Mobile

Discovery Timeline

• Not Available - Vulnerability discovered by Not Available
• Not Available - Responsible disclosure to Qualcomm
• Not Available - CVE CVE-2024-43047 assigned
• Not Available - Qualcomm releases security patch
• 2024-10-07 - CVE CVE-2024-43047 published to NVD
• 2025-10-28 - Last updated in NVD database

Technical Details for CVE-2024-43047

Vulnerability Analysis

The vulnerability is related to memory corruption when handling memory maps in High-Level Operating System (HLOS) environments. This could allow an attacker with the necessary privileges to execute arbitrary code or cause a denial of service.

Root Cause

The issue stems from improper handling of memory maps, exposing the system to state inconsistencies that lead to memory corruption.

Attack Vector

The vulnerability requires local access, potentially involving a malicious application or a local attacker who can exploit the flaw to gain elevated privileges.

// Example exploitation code (sanitized)
void exploit() {
    char buffer[10];
    strcpy(buffer, "A very long input causing overflow...");
}

Detection Methods for CVE-2024-43047

Indicators of Compromise

• Unexplained crashes of affected processes
• Unusual access patterns to HLOS memory
• Detection of unexpected memory allocations

Detection Strategies

Leverage SentinelOne EDR capabilities to monitor memory allocation anomalies and process crashes. Implement heuristics to detect unexpected elevation of process privileges.

Monitoring Recommendations

Continuously monitor system logs for crash traces and unexpected behavior patterns. Utilize SentinelOne behavioral analytics for anomaly detection in memory handling.

How to Mitigate CVE-2024-43047

Immediate Actions Required

• Update affected Qualcomm firmware and software as per vendor advisories
• Enable SentinelOne endpoint protection to block and detect exploitation attempts
• Re-evaluate and reduce local privilege allocation as necessary

Patch Information

Please refer to Qualcomm's security bulletin for patch details and updates.

Workarounds

Avoid executing untrusted applications or providing unnecessary local access. Regularly audit and manage user privileges to minimize exploitation risks.

# Configuration example
chmod 750 /path/to/qualcomm/firmware
systemctl enable selinux