Executive Summary

Informations
Name CVE-2023-20049 First vendor Publication 2023-03-09
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the bidirectional forwarding detection (BFD) hardware offload feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of malformed BFD packets that are received on line cards where the BFD hardware offload feature is enabled. An attacker could exploit this vulnerability by sending a crafted IPv4 BFD packet to an affected device. A successful exploit could allow the attacker to cause line card exceptions or a hard reset, resulting in loss of traffic over that line card while the line card reloads.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20049

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Hardware 1
Os 319

Sources (Detail)

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory...
Source Url

Alert History

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Date Informations
2024-11-28 14:20:14
  • Multiple Updates
2024-10-09 02:37:59
  • Multiple Updates
2024-10-08 02:38:31
  • Multiple Updates
2024-10-03 13:35:28
  • Multiple Updates
2024-07-26 02:33:09
  • Multiple Updates
2023-11-07 21:29:49
  • Multiple Updates
2023-09-20 02:25:58
  • Multiple Updates
2023-03-16 17:27:20
  • Multiple Updates
2023-03-10 17:27:15
  • Multiple Updates
2023-03-10 00:27:15
  • First insertion