CVE-2019-1887

published 2019-07-06

CVE-2019-1887: A vulnerability in the Session Initiation Protocol (SIP) protocol implementation of Cisco Unified Communications Manager could allow an unauthenticated, remote…

Priority P3 42 high 7.5 CVSS 3.0

AV N AC L PR N UI N S U C N I N A H

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_unified_communications_manager	>= unspecified < 12.0(1)SU3	12.0(1)SU3
cisco	unified_communications_manager	—	—
cisco	unified_communications_manager	—	—
cisco	unified_communications_manager	—	—
cisco	unified_communications_manager	—	—
cisco	unified_communications_manager_session_initiation_protocol	—	—

CVSS provenance

nvd v3.0 7.5 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P

vendor_cisco 8.6 HIGH

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CWE-787