Cisco IOS XE Software Ethernet Virtual Private Network Border Gateway Protocol Denial of Service Vulnerability

Medium Nessus Plugin ID 104533

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version, the Cisco IOS XE Software is affected by a vulnerability in the Border Gateway Protocol (BGP) over an Ethernet Virtual Private Network (EVPN) for Cisco IOS XE Software that could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a denial of service (DoS) condition, or potentially corrupt the BGP routing table, which could result in network instability. Please see the included Cisco BIDs and the Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID(s) CSCui67191 and CSCvg52875.

See Also

http://www.nessus.org/u?d1a2500b

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCui67191

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvg52875

Plugin Details

Severity: Medium

ID: 104533

File Name: cisco-sa-20171103-bgp-ios_xe.nasl

Version: 1.4

Type: local

Family: CISCO

Published: 2017/11/13

Modified: 2018/07/27

Dependencies: 67217

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5.4

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:C

CVSSv3

Base Score: 6.8

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

Required KB Items: Host/Cisco/IOS-XE/Version

Patch Publication Date: 2017/11/03

Vulnerability Publication Date: 2017/11/03

Reference Information

CVE: CVE-2017-12319

BID: 101676