Tracker / CVE-2018-0174
CVE-2018-0174
Exploited High 8.6
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.
Affected products and versions
| cisco | ios |
|---|---|
| cisco | ios · … → 15.2\(4a\)ea5 |
| cisco | ios · … → 15.2\(6\)e0a |
| cisco | ios_xe |
| cisco | ios_xe · … → 15.2\(4a\)ea5 |
| cisco | ios_xe · … → 15.2\(6\)e0a |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.