Stack-Based Buffer Overflow in GeoVision GV-LPC2011 and GV-LPC2211

Executive Summary

This vulnerability is an unauthenticated stack-based buffer overflow in the ssvr component of GeoVision GV-LPC2011 and GV-LPC2211 devices running version 1.12 or earlier. It occurs due to insufficient bounds checking when parsing RTSP Digest authentication fields.

A remote attacker can exploit this by sending a specially crafted RTSP request with overly long authentication data, which can cause memory corruption.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability involves a stack-based buffer overflow in the ssvr component of GeoVision GV-LPC2011 and GV-LPC2211 devices when parsing RTSP Digest authentication fields. Detection would typically involve monitoring for unusually long or malformed RTSP authentication headers in network traffic targeting these devices.

To detect potential exploitation attempts on your network, you can capture and analyze RTSP traffic for abnormally long Digest authentication fields. For example, using tcpdump or tshark to filter RTSP traffic and inspect the Authorization headers could help identify suspicious requests.

• Use tcpdump to capture RTSP traffic on the relevant interface: tcpdump -i <interface> -s 0 -A 'tcp port 554'
• Use tshark to filter and display RTSP Authorization headers: tshark -Y 'rtsp.authorization' -T fields -e rtsp.authorization
• Look for unusually long or malformed Digest authentication fields in the captured data, which may indicate attempts to exploit the buffer overflow.

Additionally, monitoring for crashes or denial of service symptoms on the affected devices may also indicate exploitation attempts.

Useful 0 Not Useful 0

Impact Analysis

Exploitation of this vulnerability can lead to several serious impacts including denial of service, memory corruption, and potentially arbitrary code execution on the affected device.

Useful 0 Not Useful 0

Compliance Impact

The provided information does not explicitly describe how this specific vulnerability (CVE-2026-57880) affects compliance with common standards and regulations such as GDPR or HIPAA.

Useful 0 Not Useful 0

Mitigation Strategies

To mitigate this vulnerability, it is important to apply any available security updates or patches provided by GeoVision as soon as possible.

GeoVision follows a structured vulnerability management process that includes prompt release of unscheduled updates for critical vulnerabilities like this one.

Users should monitor GeoVision's official cybersecurity advisories and update their GV-LPC2011 and GV-LPC2211 devices to the latest firmware versions beyond V1.12.

Until patches are applied, consider restricting network access to the affected devices to trusted sources only, to reduce exposure to remote attacks exploiting the RTSP Digest authentication fields.

Useful 0 Not Useful 0