CVE-2024-23368

7.8 HIGH

📋 TL;DR

This CVE describes a memory corruption vulnerability in Qualcomm's Shared Memory (SMEM) subsystem that could allow attackers to execute arbitrary code or cause denial of service. The vulnerability affects devices using Qualcomm chipsets, potentially including smartphones, IoT devices, and embedded systems. Attackers could exploit this to gain elevated privileges or compromise device integrity.

💻 Affected Systems

Products:
  • Qualcomm chipsets with SMEM subsystem
Versions: Specific versions not publicly detailed; refer to Qualcomm security bulletin
Operating Systems: Android, Linux-based systems using Qualcomm chipsets
Default Config Vulnerable: ⚠️ Yes
Notes: Affects devices with vulnerable Qualcomm firmware/software components

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete device compromise, data theft, or persistent backdoor installation

🟠

Likely Case

Local privilege escalation allowing attackers to gain elevated system privileges

🟢

If Mitigated

Denial of service or system instability if exploitation attempts are blocked

🌐 Internet-Facing: MEDIUM - Requires local access or adjacent network position for exploitation
🏢 Internal Only: HIGH - Could be exploited by malicious insiders or compromised internal devices

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires local access or adjacent network position; buffer overflow techniques needed

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Refer to Qualcomm security bulletin for specific patched versions

Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2024-bulletin.html

Restart Required: Yes

Instructions:

1. Check Qualcomm security bulletin for affected components. 2. Obtain firmware/software updates from device manufacturer. 3. Apply patches following manufacturer instructions. 4. Reboot device to activate fixes.

🔧 Temporary Workarounds

Restrict local access

all

Limit physical and network access to vulnerable devices

Implement memory protection

linux

Enable ASLR and other memory protection mechanisms if available

echo 2 > /proc/sys/kernel/randomize_va_space

🧯 If You Can't Patch

  • Isolate affected devices on separate network segments
  • Implement strict access controls and monitoring for suspicious activity

🔍 How to Verify

Check if Vulnerable:

Check device firmware/software version against Qualcomm security bulletin

Check Version:

cat /proc/version or check device settings for firmware version

Verify Fix Applied:

Verify patched firmware version is installed and device is functioning normally

📡 Detection & Monitoring

Log Indicators:

  • Kernel panic logs
  • Memory access violation errors
  • Unexpected process crashes

Network Indicators:

  • Unusual local network traffic to/from affected devices

SIEM Query:

source="kernel" AND ("panic" OR "segfault" OR "memory corruption")

🔗 References

📤 Share & Export