CVE-2018-15454 — HIGH (8.6)

Q: How severe is CVE-2018-15454?

CVE-2018-15454 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2018-15454?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Adaptive Security Appliance Software, Cisco Firepower Threat Defense.

Vulnerability Description

A vulnerability in the Session Initiation Protocol (SIP) inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload or trigger high CPU, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of SIP traffic. An attacker could exploit this vulnerability by sending SIP requests designed to specifically trigger this issue at a high rate across an affected device. Software updates that address this vulnerability are not yet available.

CVSS Score

8.6

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Cisco	Adaptive Security Appliance Software	>= 9.4, < 9.4.4.27
Cisco	Firepower Threat Defense	>= 6.1.0, < 6.1.0.7

Related Weaknesses (CWE)

CWE-20

References

http://www.securityfocus.com/bid/105768Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042129Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2MitigationVendor Advisory
http://www.securityfocus.com/bid/105768Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042129Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2MitigationVendor Advisory

FAQ

What is CVE-2018-15454?

CVE-2018-15454 is a vulnerability with a CVSS score of 8.6 (HIGH). A vulnerability in the Session Initiation Protocol (SIP) inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthen...

How severe is CVE-2018-15454?

CVE-2018-15454 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-15454?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Adaptive Security Appliance Software, Cisco Firepower Threat Defense.