CVE-2019-1684

A vulnerability in the Cisco Discovery Protocol or Link Layer Discovery Protocol (LLDP) implementation for the Cisco IP Phone 7800 and 8800 Series could allow an unauthenticated, adjacent attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability is due to missing length validation of certain Cisco Discovery Protocol or LLDP packet header fields. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition. Versions prior to 12.6(1)MN80 are affected.

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-cdp-lldp-dos	Vendor Advisory
http://www.securityfocus.com/bid/107104	Third Party Advisory VDB Entry

Configuration 1

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Published : 2019-02-21 08:29

Updated : 2020-10-16 01:12

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NVD link : CVE-2019-1684

Mitre link : CVE-2019-1684

Cisco

Ip Phone 7800

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer