CVE-2018-0174: Cisco IOS Software and Cisco IOS XE Software Improper Input Validation Vulnerability
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.
Other sources
A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow for denial-of-service (DoS).
— CISA
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2018-0174.
What is the severity of CVE-2018-0174?
The severity of CVE-2018-0174 is high with a CVSS score of 8.6.
What software is affected by CVE-2018-0174?
Cisco IOS Software and Cisco IOS XE Software versions 12.2(33)sre7a are affected by CVE-2018-0174.
How does CVE-2018-0174 impact affected devices?
CVE-2018-0174 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition.
Are there any references available for more information about CVE-2018-0174?
Yes, here are some references for more information about CVE-2018-0174: [1] [2] [3].