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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS XE on cBR Converged Broadband Routers DHCP Processing Flaw Lets Remote Users Consume Excessive CPU Resources on the Target System
SecurityTracker Alert ID:  1040716
SecurityTracker URL:  http://securitytracker.com/id/1040716
CVE Reference:   CVE-2018-0257   (Links to External Site)
Date:  Apr 19 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco IOS XE on cBR Converged Broadband Routers. A remote user can consume excessive CPU resources on the target system.

A remote user can send specially crafted DHCP packets to a specific segment of the target system to consume excessive CPU resources on the target system.

The vendor has assigned bug ID CSCvg73687 to this vulnerability.

Impact:   A remote user can consume excessive CPU resources on the target system.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-cbr8

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-cbr8 (Links to External Site)
Cause:   Resource error

Message History:   None.


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