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VULNERABILITIES

CVE-2018-0257 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-cbr8 CVEVendor Advisory
http://www.securityfocus.com/bid/103948 CVEThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040716 CVEThird Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-cbr8 [email protected]Vendor Advisory
http://www.securityfocus.com/bid/103948 [email protected]Third Party AdvisoryVDB Entry

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]
CWE-399Resource Management Errors[email protected]

Affected Products

ProductVersions
cisco ios xe
>= 3.18, <= 3.18.4
>= 16.6, <= 16.6.3
> 16.7, <= 16.7.2
15.6(2)sp
16.4

CPE

  • cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xe:15.6(2)sp:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xe:16.4:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xe:16.5:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-0257
NVD Published Date:
Apr 19, 2018
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2018-0257 Details - Not Deferred