Executive Summary

Summary
Title Cisco IOS XR Software UDP Broadcast Forwarding Denial of Service Vulnerability
Informations
Name cisco-sa-20180418-iosxr First vendor Publication 2018-04-18
Vendor Cisco Last vendor Modification 2018-04-18
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 6.1 Attack Range Adjacent network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 6.5 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the UDP broadcast forwarding function of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the affected device.

The vulnerability is due to improper handling of UDP broadcast packets that are forwarded to an IPv4 helper address. An attacker could exploit this vulnerability by sending multiple UDP broadcast packets to the affected device. An exploit could allow the attacker to cause a buffer leak on the affected device, eventually resulting in a DoS condition requiring manual intervention to recover.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-iosxr ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-iosxr"]

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Original Source

Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...)

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 13

Nessus® Vulnerability Scanner

Date Description
2018-04-27 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20180418-iosxr.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2018-05-24 21:21:51
  • Multiple Updates
2018-04-20 00:21:17
  • Multiple Updates
2018-04-18 21:18:37
  • First insertion