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Vulnerability of Cisco NX-OS: denial of service via NX-API

Synthesis of the vulnerability 

An attacker can trigger a fatal error via NX-API of Cisco NX-OS, in order to trigger a denial of service.
Vulnerable software: Nexus by Cisco, NX-OS.
Severity of this announce: 2/4.
Creation date: 29/08/2019.
Références of this computer vulnerability: CERTFR-2019-AVI-414, cisco-sa-20190828-nxos-api-dos, CSCvn26502, CSCvn31273, CSCvn57900, CVE-2019-1968, VIGILANCE-VUL-30187.

Description of the vulnerability 

An attacker can trigger a fatal error via NX-API of Cisco NX-OS, in order to trigger a denial of service.
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This computer weakness alert impacts software or systems such as Nexus by Cisco, NX-OS.

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

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

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

Solutions for this threat 

Cisco NX-OS: solution CSCvn26502 CSCvn31273 CSCvn57900.
The solution is described on the Cisco site:
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvn26502
  https://tools.cisco.com/bugsearch/bug/CSCvn26502
  https://tools.cisco.com/quickview/bug/CSCvn26502
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvn31273
  https://tools.cisco.com/bugsearch/bug/CSCvn31273
  https://tools.cisco.com/quickview/bug/CSCvn31273
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvn57900
  https://tools.cisco.com/bugsearch/bug/CSCvn57900
  https://tools.cisco.com/quickview/bug/CSCvn57900
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