CVE-2024-21460

7.1 HIGH

📋 TL;DR

This vulnerability in Qualcomm chipsets allows information disclosure when Address Space Layout Randomization (ASLR) fails to properly randomize memory regions for IMEM and Secure DDR, treating them as a single chunk. Attackers can potentially bypass ASLR protections to leak sensitive data. This affects devices using vulnerable Qualcomm hardware components.

💻 Affected Systems

Products:
  • Qualcomm chipsets with affected firmware
Versions: Specific firmware versions not publicly detailed in advisory
Operating Systems: Android and other OS using affected Qualcomm hardware
Default Config Vulnerable: ⚠️ Yes
Notes: Affects devices with specific Qualcomm hardware components; exact device models not specified in public advisory.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete ASLR bypass enabling reliable exploitation of other vulnerabilities, potentially leading to full device compromise and sensitive data exfiltration.

🟠

Likely Case

Information disclosure allowing attackers to bypass ASLR and gain memory layout knowledge to facilitate exploitation of other vulnerabilities.

🟢

If Mitigated

Limited information leakage with minimal practical impact if proper memory isolation and additional security controls are implemented.

🌐 Internet-Facing: LOW - This is a hardware/firmware vulnerability requiring local access or exploitation through other attack vectors first.
🏢 Internal Only: MEDIUM - Could be exploited by malicious apps or attackers with local access to vulnerable devices.

🎯 Exploit Status

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

Exploitation requires local access or ability to execute code on target device; no public exploit code available.

🛠️ Fix & Mitigation

✅ Official Fix

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

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

Restart Required: Yes

Instructions:

1. Check device manufacturer for security updates. 2. Apply firmware/OS updates from device vendor. 3. Reboot device after update installation.

🔧 Temporary Workarounds

No direct workaround available

all

This is a hardware/firmware level vulnerability requiring vendor patches

🧯 If You Can't Patch

  • Restrict physical access to vulnerable devices
  • Implement application sandboxing and privilege separation to limit impact

🔍 How to Verify

Check if Vulnerable:

Check device firmware version against Qualcomm security bulletin; contact device manufacturer for specific vulnerability status.

Check Version:

Device-specific commands vary by manufacturer; typically in Settings > About Phone > Build Number

Verify Fix Applied:

Verify firmware version has been updated to patched version specified in vendor advisory.

📡 Detection & Monitoring

Log Indicators:

  • Unusual memory access patterns
  • ASLR bypass attempts in system logs

Network Indicators:

  • No direct network indicators for this local vulnerability

SIEM Query:

No specific SIEM query available due to hardware-level nature of vulnerability

🔗 References

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