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INFORMATION TECHNOLOGY LABORATORY


NATIONAL VULNERABILITY DATABASE


NATIONAL VULNERABILITY DATABASE


NVD


 1. Vulnerabilities


CVE-2021-27862 DETAIL

Received

--------------------------------------------------------------------------------

This vulnerability has been received by the NVD and has not been analyzed.


DESCRIPTION

Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed
using LLC/SNAP headers with invalid length and Ethernet to Wifi frame conversion
(and optionally VLAN0 headers).



SEVERITY

 
CVSS Version 3.x CVSS Version 2.0


CVSS 3.x Severity and Metrics:


NIST: NVD
Base Score:  N/A
NVD score not yet provided.


NVD Analysts use publicly available information to associate vector strings and
CVSS scores. We also display any CVSS information provided within the CVE List
from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time.
NVD Analysts use publicly available information at the time of analysis to
associate CVSS vector strings.


CVSS 2.0 Severity and Metrics:


NIST: NVD
Base Score: N/A
NVD score not yet provided.


NVD Analysts use publicly available information to associate vector strings and
CVSS scores. We also display any CVSS information provided within the CVE List
from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time.
NVD Analysts use publicly available information at the time of analysis to
associate CVSS vector strings.




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Hyperlink Resource
https://datatracker.ietf.org/doc/draft-ietf-v6ops-ra-guard/08/
https://standards.ieee.org/ieee/802.2/1048/


WEAKNESS ENUMERATION

CWE-ID CWE Name Source CWE-130 Improper Handling of Length Parameter
Inconsistency CERT/CC   CWE-290 Authentication Bypass by Spoofing CERT/CC  


CHANGE HISTORY

0 change records found show changes


QUICK INFO

CVE Dictionary Entry:
CVE-2021-27862
NVD Published Date:
09/27/2022
NVD Last Modified:
09/27/2022
Source:
CERT/CC


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