Cisco IOS XE Software Overlay Transport Virtualization (OTV) DoS

medium Nessus Plugin ID 83733

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Synopsis

The remote Cisco device is affected by a denial of service vulnerability.

Description

The remote Cisco device is affected by a denial of service vulnerability due to improper processing of oversized Overlay Transport Virtualization (OTV) frames. An unauthenticated, adjacent attacker can exploit this, by sending a large number of oversized OTV frames requiring fragmentation and reassembly, to cause the device to reload, resulting in a denial of service condition.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCup30335 and CSCup37676.

As a workaround, limit oversize packets across OTV topology.

Plugin Details

Severity: Medium

ID: 83733

File Name: cisco-sn-CSCup37676_CSCup30335-iosxe.nasl

Version: 1.8

Type: combined

Family: CISCO

Published: 5/20/2015

Updated: 5/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/28/2013

Vulnerability Publication Date: 4/28/2015

Reference Information

CVE: CVE-2015-0710

BID: 74386

CISCO-BUG-ID: CSCup30335, CSCup37676

Detections

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