CVE-2018-0189

Published Mar 28, 2018

Last updated 3 days ago

Overview

Description
A vulnerability in the Forwarding Information Base (FIB) code of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, network attacker to cause a denial of service (DoS) condition. The vulnerability is due to a limitation in the way the FIB is internally representing recursive routes. An attacker could exploit this vulnerability by injecting routes into the routing protocol that have a specific recursive pattern. The attacker must be in a position on the network that provides the ability to inject a number of recursive routes with a specific pattern. An exploit could allow the attacker to cause an affected device to reload, creating a DoS condition. Cisco Bug IDs: CSCva91655.
Source
ykramarz@cisco.com
NVD status
Modified

Risk scores

CVSS 3.0

Type
Primary
Base score
5.3
Impact score
3.6
Exploitability score
1.6
Vector string
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
7.1
Impact score
6.9
Exploitability score
8.6
Vector string
AV:N/AC:M/Au:N/C:N/I:N/A:C

Weaknesses

ykramarz@cisco.com
CWE-399
nvd@nist.gov
NVD-CWE-noinfo

Social media

Hype score
Not currently trending

Configurations