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CVE-2021-34734— Cisco Video Surveillance 7000 Series IP Cameras Link Layer Discovery Protocol Double-Free Denial of Service Vulnerability

CVSS 6.5 · Medium EPSS 0.32% · P55
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I. Basic Information for CVE-2021-34734

Vulnerability Information
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Vulnerability Title
Cisco Video Surveillance 7000 Series IP Cameras Link Layer Discovery Protocol Double-Free Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability 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).
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
双重释放
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Video Surveillance 7000 Series IP Cameras 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Video Surveillance 7000 Series IP Cameras是美国思科（Cisco）公司的网络设备一款视频监控摄像头。 Cisco Video Surveillance 7000 系列 IP 摄像机固件的链路层发现协议 (LLDP) 实施中存在资源管理错误漏洞，该漏洞源于内存资源管理不当。该漏洞可能允许未经身份验证的相邻攻击者导致拒绝服务 (DoS) 条件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
CiscoCisco Video Surveillance 7000 Series IP Cameras n/a -

II. Public POCs for CVE-2021-34734

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III. Intelligence Information for CVE-2021-34734

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IV. Related Vulnerabilities

Same product: Cisco Video Surveillance 7000 Series IP Cameras
Same vendor: Cisco
Same weakness: CWE-415

V. Comments for CVE-2021-34734

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