PT-2018-8819 · Cisco · Cisco Prime Access Registrar

Published 2018-10-05 · Updated 2019-10-09 · CVE-2018-0421

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Cisco Prime Access Registrar (affected versions not specified)

Description A denial of service (DoS) condition can occur due to incorrect handling of incoming TCP SYN packets to specific listening ports. This improper handling could cause a system file description to be allocated and not freed. An attacker could exploit this by sending a crafted stream of TCP SYN packets to the application, potentially causing it to restart if a file description cannot be obtained.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Missing Release of Resource after Effective Lifetime

Weakness Enumeration

CWE-772

CWE-399

Related Identifiers

CVE-2018-0421

Affected Products

Cisco Prime Access Registrar

References · 5

• https://osv.dev/vulnerability/CVE-2018-0421 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-0421 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-cpar-dos · Vendor Advisory
• http://securitytracker.com/id/1041684 · Note
• http://securityfocus.com/bid/105282 · Note