Executive Summary

Informations
Name CVE-2021-34713 First vendor Publication 2021-09-09
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Overall CVSS Score 7.4
Base Score 7.4 Environmental Score 7.4
impact SubScore 4 Temporal Score 7.4
Exploitabality Sub Score 2.8
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 6.1 Attack Range Adjacent network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 6.5 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the Layer 2 punt code of Cisco IOS XR Software running on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause the affected line card to reboot. This vulnerability is due to incorrect handling of specific Ethernet frames that cause a spin loop that can make the network processors unresponsive. An attacker could exploit this vulnerability by sending specific types of Ethernet frames on the segment where the affected line cards are attached. A successful exploit could allow the attacker to cause the affected line card to reboot.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34713

CPE : Common Platform Enumeration

TypeDescriptionCount
Hardware 1
Os 210

Sources (Detail)

Source Url
CISCO https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...

Alert History

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Date Informations
2023-11-07 21:34:03
  • Multiple Updates
2023-09-20 02:12:40
  • Multiple Updates
2022-05-05 01:58:10
  • Multiple Updates
2021-11-06 12:50:00
  • Multiple Updates
2021-09-22 00:22:53
  • Multiple Updates
2021-09-09 12:44:14
  • First insertion