CVE-2023-52387
📋 TL;DR
This CVE describes a resource reuse vulnerability in Huawei GPU modules that could allow unauthorized access to sensitive data. The vulnerability affects confidentiality of services running on affected Huawei devices. Users of Huawei devices with specific HarmonyOS versions are primarily impacted.
💻 Affected Systems
- Huawei devices with GPU modules
📦 What is this software?
Emui by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access sensitive GPU-processed data from other applications or system services, potentially exposing confidential information like authentication tokens, encryption keys, or private user data.
Likely Case
Local attackers or malicious applications could access GPU memory containing residual data from other processes, potentially exposing some application-specific sensitive information.
If Mitigated
With proper isolation controls and patched systems, the vulnerability would be prevented from being exploited, maintaining normal service confidentiality.
🎯 Exploit Status
Exploitation requires local access or ability to run malicious code on the device. No public exploit code has been identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Huawei security bulletins for specific patched versions
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/2/
Restart Required: Yes
Instructions:
1. Check Huawei security bulletins for affected devices. 2. Apply the latest security updates through device settings. 3. Reboot device after update installation.
🔧 Temporary Workarounds
Restrict local application installation
allLimit installation of untrusted applications to reduce attack surface
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks and data
- Implement strict application whitelisting policies
🔍 How to Verify
Check if Vulnerable:
Check device HarmonyOS version in Settings > About phone > HarmonyOS versionCheck Version:
Not applicable - check through device settings interfaceVerify Fix Applied:
Verify HarmonyOS version matches or exceeds patched version listed in Huawei security bulletins📡 Detection & Monitoring
Log Indicators:
- Unusual GPU memory access patterns
- Suspicious local process behavior
Network Indicators:
- Not network exploitable - local vulnerability only
SIEM Query:
Not applicable - local device vulnerability🔗 References
- https://consumer.huawei.com/en/support/bulletin/2024/2/
- https://device.harmonyos.com/cn/docs/security/update/security-bulletins-202402-0000001834855405
- https://consumer.huawei.com/en/support/bulletin/2024/2/
- https://device.harmonyos.com/cn/docs/security/update/security-bulletins-202402-0000001834855405
