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Vulnerability of Cisco IOS, IOS XE: denial of service via IPv6 Hop-by-Hop Options

Synthesis of the vulnerability 

An attacker can generate a fatal error via IPv6 Hop-by-Hop Options of Cisco IOS, IOS XE, in order to trigger a denial of service.
Impacted products: Cisco ASR, Cisco Catalyst, IOS by Cisco, IOS XE Cisco, Cisco Router.
Severity of this bulletin: 3/4.
Creation date: 27/09/2018.
Références of this threat: CERTFR-2018-AVI-458, cisco-sa-20180926-ipv6hbh, CSCuz28570, CVE-2018-0467, VIGILANCE-VUL-27333.

Description of the vulnerability 

An attacker can generate a fatal error via IPv6 Hop-by-Hop Options of Cisco IOS and IOS XE, in order to trigger a denial of service.
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This threat note 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 cybersecurity note is important.

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

An attacker with a expert ability can exploit this vulnerability note.

Solutions for this threat 

Cisco IOS, IOS XE: solution CSCuz28570.
The solution is described on the Cisco site:
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuz28570
  https://tools.cisco.com/bugsearch/bug/CSCuz28570
  https://tools.cisco.com/quickview/bug/CSCuz28570
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