A vulnerability in TCP connection management in Cisco Prime Access Registrar could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition when the application unexpectedly restarts. The vulnerability is due to incorrect handling of incoming TCP SYN packets to specific listening ports. The improper handling of the TCP SYN packets could cause a system file description to be allocated and not freed. An attacker could exploit this vulnerability by sending a crafted stream of TCP SYN packets to the application. A successful exploit could allow the attacker to cause the application to eventually restart if a file description cannot be obtained.
History

Tue, 26 Nov 2024 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2018-10-05T14:00:00Z

Updated: 2024-11-26T14:45:57.288Z

Reserved: 2017-11-27T00:00:00

Link: CVE-2018-0421

cve-icon Vulnrichment

Updated: 2024-08-05T03:21:15.674Z

cve-icon NVD

Status : Modified

Published: 2018-10-05T14:29:00.623

Modified: 2024-11-21T03:38:11.630

Link: CVE-2018-0421

cve-icon Redhat

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