Vulnerability Description
A vulnerability in the Session Initiation Protocol (SIP) call-handling functionality of Cisco IP Phone 6800, 7800, and 8800 Series Phones with Multiplatform Firmware could allow an unauthenticated, remote attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability exists because the firmware of an affected phone incorrectly handles errors that could occur when an incoming phone call is not answered. An attacker could exploit this vulnerability by sending a set of maliciously crafted SIP packets to an affected phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition. This vulnerability affects Cisco IP Phone 6800, 7800, and 8800 Series Phones with Multiplatform Firmware if they are running a Multiplatform Firmware release prior to Release 11.1(2). Cisco Bug IDs: CSCvi24718.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ip Phone Firmware | 11.1\(2\) |
| Cisco | Ip Phone 6841 | - |
| Cisco | Ip Phone 6851 | - |
| Cisco | Ip Phone 7811 | - |
| Cisco | Ip Phone 7821 | - |
| Cisco | Ip Phone 7841 | - |
| Cisco | Ip Phone 7861 | - |
| Cisco | Ip Phone 8811 | - |
| Cisco | Ip Phone 8841 | - |
| Cisco | Ip Phone 8845 | - |
| Cisco | Ip Phone 8851 | - |
| Cisco | Ip Phone 8861 | - |
| Cisco | Ip Phone 8865 | - |
Related Weaknesses (CWE)
References
- http://www.securitytracker.com/id/1041073Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securitytracker.com/id/1041073Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2018-0316?
CVE-2018-0316 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability in the Session Initiation Protocol (SIP) call-handling functionality of Cisco IP Phone 6800, 7800, and 8800 Series Phones with Multiplatform Firmware could allow an unauthenticated, re...
How severe is CVE-2018-0316?
CVE-2018-0316 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-0316?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ip Phone Firmware, Cisco Ip Phone 6841, Cisco Ip Phone 6851, Cisco Ip Phone 7811, Cisco Ip Phone 7821.