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Medium · 6.5 CVE-2021-34734 EUVD-2021-21384GHSA-v9rw-54r8-5m4q

Cisco Video Surveillance 7000 Series IP Cameras Link Layer Discovery Protocol Double-Free Denial of Service Vulnerability

Published Aug 18, 2021 · Updated Nov 7, 2024 · Assigned by cisco

Description

A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for the Cisco Video Surveillance 7000 Series IP Cameras firmware could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper management of memory resources, referred to as a double free. An attacker could exploit this vulnerability by sending crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

Affected products

VendorProductAffectedFixed
Cisco Cisco Video Surveillance 7000 Series IP Cameras — —

References