A vulnerability in the authentication service of the Cisco Unified Communications Manager IM and Presence (Unified CM IM&P) Service, Cisco TelePresence Video Communication Server (VCS), and Cisco Expressway Series could allow an unauthenticated, remote attacker to cause a service outage for users attempting to authenticate, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient controls for specific memory operations. An attacker could exploit this vulnerability by sending a malformed Extensible Messaging and Presence Protocol (XMPP) authentication request to an affected system. A successful exploit could allow the attacker to cause an unexpected restart of the authentication service, preventing users from successfully authenticating. Exploitation of this vulnerability does not impact users who were authenticated prior to an attack.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2019-06-05T16:25:30.404645Z

Updated: 2024-09-16T19:30:04.412Z

Reserved: 2018-12-06T00:00:00

Link: CVE-2019-1845

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-06-05T17:29:00.460

Modified: 2019-10-09T23:48:19.300

Link: CVE-2019-1845

cve-icon Redhat

No data.