Stack Buffer Overflow in GeoVision GV-LPC2211 V1.14

Executive Summary

GeoVision GV-LPC2211 V1.14 (260903) has a stack-based buffer overflow vulnerability. It fails to validate attacker-controlled variable-length fields before copying them into fixed-size stack buffers in multiple VLSVR request handlers. This allows an unauthenticated remote attacker to crash the VLSVR service.

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Detection Guidance

This vulnerability involves unauthenticated remote attackers crashing the VLSVR service due to improper handling of variable-length fields. To detect it, monitor for crashes in the VLSVR service or unusual network traffic patterns targeting GeoVision GV-LPC2211 devices. Check logs for segmentation faults or service termination events in VLSVR. Use network scanning tools like nmap to identify affected devices by searching for open ports commonly used by GeoVision services.

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Impact Analysis

This vulnerability can allow an unauthenticated remote attacker to crash the VLSVR service, causing a denial of service. It does not require user interaction or authentication, making it easier to exploit remotely.

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Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling unauthorized remote access to crash the VLSVR service. Unpatched systems may fail to meet requirements for data availability, integrity, and security controls.

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Mitigation Strategies

Immediately isolate affected GeoVision GV-LPC2211 devices from the network to prevent remote exploitation. Disable the VLSVR service if possible or restrict network access to it. Monitor for crashes in the VLSVR service as an indicator of exploitation attempts.

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