Denial of service in Cisco Video Surveillance 7000 Series IP Cameras



Published: 2021-08-23
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-34734
CWE-ID CWE-415
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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Cisco Video Surveillance 7000 Series IP Cameras
Hardware solutions / Security hardware applicances

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Double Free

EUVDB-ID: #VU56027

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-34734

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the Link Layer Discovery Protocol (LLDP) implementation. A remote attacker  on the local network can pass specially crafted data to the application, trigger double free error and cause a denial of service condition on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco Video Surveillance 7000 Series IP Cameras: 2.12.4

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipcamera-lldp-dos-OFP7j9j


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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