PT-2018-8705 · Cisco · Cisco Ios Xe

Published 2018-04-18 · Updated 2019-10-09 · CVE-2018-0257

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions: Cisco IOS XE Software running on Cisco cBR Series Converged Broadband Routers (affected versions not specified)

Description: A vulnerability in the software could allow an unauthenticated, adjacent attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The issue is due to the incorrect handling of certain DHCP packets. An attacker could exploit this by sending certain DHCP packets to a specific segment of an affected device, potentially increasing CPU usage and causing a DoS condition.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2018-0257

Affected Products

Cisco Ios Xe

References · 5

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-cbr8 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-0257 · Security Note
• https://osv.dev/vulnerability/CVE-2018-0257 · Vendor Advisory
• http://securityfocus.com/bid/103948 · Note
• http://securitytracker.com/id/1040716 · Note