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Vulnerability of Cisco ASR 5000: denial of service via StarOS IPv4

Synthesis of the vulnerability 

An attacker can trigger a fatal error via StarOS IPv4 of Cisco ASR 5000, in order to trigger a denial of service.
Impacted products: Cisco ASR.
Severity of this bulletin: 2/4.
Creation date: 21/01/2021.
Références of this threat: CERTFR-2021-AVI-052, cisco-sa-asr-mem-leak-dos-MTWGHKk3, CSCvq83868, CSCvv69023, CVE-2021-1353, VIGILANCE-VUL-34383.

Description of the vulnerability 

An attacker can trigger a fatal error via StarOS IPv4 of Cisco ASR 5000, in order to trigger a denial of service.
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This vulnerability announce impacts software or systems such as Cisco ASR.

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

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 computer threat bulletin.

Solutions for this threat 

Cisco ASR 5000: solution CSCvq83868 CSCvv69023.
The solution is described on the Cisco site:
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvq83868
  https://tools.cisco.com/bugsearch/bug/CSCvq83868
  https://tools.cisco.com/quickview/bug/CSCvq83868
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvv69023
  https://tools.cisco.com/bugsearch/bug/CSCvv69023
  https://tools.cisco.com/quickview/bug/CSCvv69023
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