Vulnerability Description
A vulnerability in the Session Initiation Protocol (SIP) call-handling functionality of Cisco IP Phone 7800 Series phones and Cisco IP Phone 8800 Series phones could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected phone. The vulnerability is due to incomplete input validation of SIP Session Description Protocol (SDP) parameters by the SDP parser of an affected phone. An attacker could exploit this vulnerability by sending a malformed SIP packet to an affected phone. A successful exploit could allow the attacker to cause all active phone calls on the affected phone to be dropped while the SIP process on the phone unexpectedly restarts, resulting in a DoS condition. Cisco Bug IDs: CSCvf40066.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ip Phone 8800 Firmware | 9.4\(2\)sr4 |
| Cisco | Ip Phone 8800 | - |
| Cisco | Ip Phone 7800 Firmware | < 12.1\(1.12\) |
| Cisco | Ip Phone 7800 | - |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/104202Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040927Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securityfocus.com/bid/104202Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040927Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2018-0325?
CVE-2018-0325 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 7800 Series phones and Cisco IP Phone 8800 Series phones could allow an unauthenticated, remote a...
How severe is CVE-2018-0325?
CVE-2018-0325 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-2018-0325?
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.