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Vulnerability of Cisco IOS, IOS XE: denial of service via VLAN Trunking Protocol

Synthesis of the vulnerability 

An attacker can generate a fatal error via VLAN Trunking Protocol of Cisco IOS and IOS XE, in order to trigger a denial of service.
Vulnerable systems: Cisco ASR, Cisco Catalyst, IOS by Cisco, IOS XE Cisco, Cisco Router.
Severity of this threat: 2/4.
Creation date: 27/09/2018.
Références of this weakness: CERTFR-2018-AVI-458, cisco-sa-20180926-vtp, CSCvd37163, CVE-2018-0197, VIGILANCE-VUL-27344.

Description of the vulnerability 

An attacker can generate a fatal error via VLAN Trunking Protocol of Cisco IOS and IOS XE, in order to trigger a denial of service.
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This cybersecurity vulnerability impacts software or systems such as Cisco ASR, Cisco Catalyst, IOS by Cisco, IOS XE Cisco, Cisco Router.

Our Vigil@nce team determined that the severity of this vulnerability is medium.

The trust level is of type confirmed by the editor, with an origin of LAN.

An attacker with a expert ability can exploit this weakness alert.

Solutions for this threat 

Cisco IOS, IOS XE: solution CSCvd37163.
The solution is described on the Cisco site:
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvd37163
  https://tools.cisco.com/bugsearch/bug/CSCvd37163
  https://tools.cisco.com/quickview/bug/CSCvd37163
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Computer vulnerabilities tracking service 

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