Cisco IOS XE Common Flow Table DoS

high Nessus Plugin ID 82586
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Synopsis

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

Description

The Cisco IOS XE software running on the remote device is affected by a denial of service vulnerability in the Common Flow Table (CFT) feature due to improper processing of IPv6 packets encapsulated inside IPv4 UDP packets. An unauthenticated, remote attacker, using malformed packets, can exploit this to cause a device reload.

Note this only affects devices that have configured Media Monitoring (MMON) or Network-Based Application Recognition (NBAR).

Solution

Apply the relevant patch referenced in the Cisco Security Advisory.

See Also

http://www.nessus.org/u?d4cbb5bb

https://tools.cisco.com/bugsearch/bug/CSCua79665

Plugin Details

Severity: High

ID: 82586

File Name: cisco-sn-CSCua79665-iosxe.nasl

Version: 1.11

Type: local

Family: CISCO

Published: 4/6/2015

Updated: 11/22/2019

Dependencies: cisco_ios_xe_version.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

Temporal Vector: E:U/RL:OF/RC: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: 3/26/2015

Vulnerability Publication Date: 3/25/2015

Reference Information

CVE: CVE-2015-0639

BID: 73337

CISCO-BUG-ID: CSCua79665