SB2018110101 - Denial of service when processing SIP packets in Cisco ASA and Cisco Firepower Threat Defense
Published: November 1, 2018
Security Bulletin ID
SB2018110101
Severity
High
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2018-15454)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of SIP traffic. A remote attacker can send specially crafted SIP packets to the affected device, cause high CPU load that may lead to denial of service conditions.
Note, this vulnerability is being actively exploited in the wild against a limited number of targets.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.