#VU17842 Input validation error in Cisco 8800 Series IP Phones and Cisco 7800 Series IP Phones - CVE-2019-1684 

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Main Vulnerability Database Vulnerabilities #VU17842

#VU17842 Input validation error in Cisco 8800 Series IP Phones and Cisco 7800 Series IP Phones - CVE-2019-1684

Published: February 22, 2019


Vulnerability identifier: #VU17842
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-1684
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Cisco 8800 Series IP Phones
Cisco 7800 Series IP Phones
Software vendor:
Cisco Systems, Inc

Description

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

The vulnerability exists in the Cisco Discovery Protocol or Link Layer Discovery Protocol (LLDP) implementation due to missing length validation of certain Cisco Discovery Protocol or LLDP packet header fields. An adjacent attacker can send a malicious Cisco Discovery Protocol or LLDP packet and cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition.


Remediation

The vulnerability has been addressed in the versions 12.6(1)MN80, 12.5(1)SR2, 12.5(1)ES1, 12.1(1)SR2.1.

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