CVE-2018-0409

A vulnerability in the XCP Router service of the Cisco Unified Communications Manager IM & Presence Service (CUCM IM&P) and the Cisco TelePresence Video Communication Server (VCS) and Expressway could allow an unauthenticated, remote attacker to cause a temporary service outage for all IM&P users, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a malicious IPv4 or IPv6 packet to an affected device on TCP port 7400. An exploit could allow the attacker to overread a buffer, resulting in a crash and restart of the XCP Router service. Cisco Bug IDs: CSCvg97663, CSCvi55947.

Score

CVSS 3.1 7.5 High

Status

Modified - psirt@cisco.com

Published

2018-08-15

Last modified

2024-11-26

Weaknesses

CWE-125, CWE-20

Affected products

• Telepresence Video Communication Server (Cisco)
• Unified Communications Manager Im And Presence Service (Cisco)
• Telepresence Video Communication Server Vcs And Expressway (Cisco Systems Inc.)
• Unified Communications Manager Im Presence Service Cucm Imp (Cisco Systems Inc.)

References

• http://www.securityfocus.com/bid/105102
• http://www.securityfocus.com/bid/105104
• http://www.securitytracker.com/id/1041533
• http://www.securitytracker.com/id/1041534
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-ucmimps-dos