CVE-2018-0421

Description

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.

Risk Information

Base Score

8.6

MODERATE

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS Score

Exploitation Probability

1.495

Associated Vulnerability

Vulnerability	OS Platform
Cisco Prime Access Registrar Denial of Service Vulnerability For Cisco Access Registrar	NCM
Missing Release of Resource after Effective Lifetime Vulnerability (CVE-2018-0421)	NCM

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-1706039	Security Update for Cisco Access Registrar 8.0

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234