CVE-2017-17153 in NGFW Module
Сводка
по VulDB • 26.05.2026
Based on the information provided, here is a structured analysis and recommendation regarding the **memory leak vulnerability** in Huawei Secospace USG series firewalls.
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### ???? Vulnerability Summary
- **Affected Products**: - Secospace USG6500 - Secospace USG6600 - USG9500 - **Affected Versions**: - V500R001C00 (and all subsequent service packs: SPC100, SPC200, SPC300, SPC500, etc.) - V500R001C20 (and all subsequent service packs: SPC100, SPC200, SPC300, etc.) - **Vulnerability Type**: Memory Leak - **Root Cause**: Insufficient input validation leading to failure in memory release. - **Impact**: - Gradual consumption of system memory. - Potential system exceptions, instability, or denial of service (DoS). - May degrade performance over time if exploited repeatedly.
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### ????️ Risk Assessment
- **Severity**: **Medium to High** - While not directly exploitable for remote code execution, a memory leak can lead to **system crash or unavailability**, especially under sustained attack conditions. - In firewall environments, availability is critical; thus, this vulnerability poses a significant operational risk.
- **Attack Vector**: - Likely triggered by crafted network traffic or specific API/configurations that bypass input validation. - May require repeated interactions to exhaust memory.
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### ✅ Recommended Mitigations
#### 1. **Apply Vendor Patches** - **Check Huawei Security Advisories** for official patches addressing this memory leak issue. - Upgrade to the **latest stable version** of the firmware for your specific USG model. - Example: If currently on V500R001C20SPC200, check if a newer service pack (e.g., SPC400 or later) includes the fix.
#### 2. **Workarounds (If Patching Is Not Immediately Possible)** - **Monitor Memory Usage**: Implement regular monitoring of system memory consumption on affected devices. - **Restart Services/Devices**: Schedule periodic reboots during maintenance windows to reclaim leaked memory (temporary mitigation). - **Restrict Access**: Limit exposure of management interfaces and disable unused services to reduce attack surface. - **Input Validation at Network Level**: Use upstream firewalls or IPS to filter suspicious traffic patterns that may trigger the vulnerability.
#### 3. **Long-Term Actions** - **Regular Firmware Updates**: Establish a patch management policy to keep all USG devices up to date. - **Security Audits**: Conduct regular vulnerability assessments and penetration testing. - **Log Monitoring**: Enable detailed logging and set alerts for abnormal memory usage or system exceptions.
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### ???? References
- **Huawei Security Advisory**: Search for official advisories related to "USG memory leak" or "V500R001C20 memory release failure". - **CVE Identifier**: If assigned, check CVE databases (e.g., CVE-2023-XXXXX) for detailed technical information. - **Vendor Support Portal**: Log in to Huawei’s official support site to download patches and verify version compatibility.
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### ⚠️ Note
This vulnerability highlights the importance of **robust input validation** and **memory management** in network security devices. Even non-critical bugs like memory leaks can have severe operational impacts in production environments.
If you are responsible for managing these devices, prioritize applying the latest firmware updates and monitoring system health closely.
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