CVE-2018-0174

Description

A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuh91645.

Risk Information

Base Score

8.6

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS Score

Exploitation Probability

4.069

Associated Vulnerability

Vulnerability	OS Platform
Cisco IOS and IOS XE Software DHCP Version 4 Relay Denial of Service Vulnerability For Cisco IOS	NCM
Cisco IOS and IOS XE Software DHCP Version 4 Relay Denial of Service Vulnerability For Cisco IOS XE Software	NCM
Improper Input Validation Vulnerability (CVE-2018-0174)	NCM

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-1706090	Security Update for Cisco IOS Amsterdam-17.2.1r
PATCH-1706107	Security Update for Cisco IOS XE Software 5.2(1)SV5(1.3a)

References

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