Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ip Phone 8800 Firmware | < 12.6\(1\)mn80 |
| Cisco | Ip Phone 8800 | - |
| Cisco | Ip Phone 7800 Firmware | < 12.6\(1\)mn80 |
| Cisco | Ip Phone 7800 | - |
| Cisco | Ip Conference Phone 7832 Firmware | < 12.6\(1\)mn80 |
| Cisco | Ip Conference Phone 7832 | - |
| Cisco | Ip Conference Phone 8832 Firmware | < 12.6\(1\)mn80 |
| Cisco | Ip Conference Phone 8832 | - |
| Cisco | Ip Phone 7811 Firmware | < 12.6\(1\)mn80 |
| Cisco | Ip Phone 7811 | - |
| Cisco | Ip Phone 7821 Firmware | < 12.6\(1\)mn80 |
| Cisco | Ip Phone 7821 | - |
| Cisco | Ip Phone 7841 Firmware | < 12.6\(1\)mn80 |
| Cisco | Ip Phone 7841 | - |
| Cisco | Ip Phone 7861 Firmware | < 12.6\(1\)mn80 |
| Cisco | Ip Phone 7861 | - |
| Cisco | Ip Phone 8811 Firmware | < 12.6\(1\)mn80 |
| Cisco | Ip Phone 8811 | - |
| Cisco | Ip Phone 8841 Firmware | < 12.6\(1\)mn80 |
| Cisco | Ip Phone 8841 | - |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/107104Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securityfocus.com/bid/107104Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2019-1684?
CVE-2019-1684 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2019-1684?
CVE-2019-1684 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-1684?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ip Phone 8800 Firmware, Cisco Ip Phone 8800, Cisco Ip Phone 7800 Firmware, Cisco Ip Phone 7800, Cisco Ip Conference Phone 7832 Firmware.