CVE-2019-1887: Cisco Unified Communications Manager Session Initiation Protocol Denial of Service Vulnerability
A vulnerability in the Session Initiation Protocol (SIP) protocol implementation of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of input SIP traffic. An attacker could exploit this vulnerability by sending a malformed SIP packet to an affected Cisco Unified Communications Manager. A successful exploit could allow the attacker to trigger a new registration process on all connected phones, temporarily disrupting service.
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Frequently Asked Questions
What is CVE-2019-1887?
CVE-2019-1887 is a vulnerability in the Session Initiation Protocol (SIP) protocol implementation of Cisco Unified Communications Manager that could allow an unauthenticated attacker to cause a denial of service (DoS) condition.
What is the severity of CVE-2019-1887?
The severity of CVE-2019-1887 is high with a CVSS score of 7.5.
How does CVE-2019-1887 affect Cisco Unified Communications Manager?
CVE-2019-1887 affects Cisco Unified Communications Manager versions 10.5(2.10000.5), 11.5(1.10000.6), 12.0(1.10000.10), and 12.5(1.10000.22).
What is the vulnerability of CVE-2019-1887?
CVE-2019-1887 is a vulnerability related to insufficient validation of input SIP traffic in Cisco Unified Communications Manager.
How can I fix CVE-2019-1887?
To fix CVE-2019-1887, it is recommended to update Cisco Unified Communications Manager to the latest version available.