National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-0257 Detail

Current Description

A vulnerability in Cisco IOS XE Software running on Cisco cBR Series Converged Broadband Routers could allow an unauthenticated, adjacent attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to the incorrect handling of certain DHCP packets. An attacker could exploit this vulnerability by sending certain DHCP packets to a specific segment of an affected device. A successful exploit could allow the attacker to increase CPU usage on the affected device and cause a DoS condition. Cisco Bug IDs: CSCvg73687.

Source:  MITRE
Description Last Modified:  04/19/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L (V3 legend)
Impact Score: 1.4
Exploitability Score: 2.8


Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

CVSS v2.0 Severity and Metrics:

Base Score: 3.3 LOW
Vector: (AV:A/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 6.5


Access Vector (AV): Local_Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/103948 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040716 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-cbr8 Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-0257
NVD Published Date:
04/19/2018
NVD Last Modified:
05/24/2018