Executive Summary

Informations
Name CVE-2021-47194 First vendor Publication 2024-04-10
Vendor Cve Last vendor Modification 2024-04-19

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High 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

In the Linux kernel, the following vulnerability has been resolved:

cfg80211: call cfg80211_stop_ap when switch from P2P_GO type

If the userspace tools switch from NL80211_IFTYPE_P2P_GO to NL80211_IFTYPE_ADHOC via send_msg(NL80211_CMD_SET_INTERFACE), it does not call the cleanup cfg80211_stop_ap(), this leads to the initialization of in-use data. For example, this path re-init the sdata->assigned_chanctx_list while it is still an element of assigned_vifs list, and makes that linked list corrupt.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-47194

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-665 Improper Initialization

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 7
Os 3447

Sources (Detail)

https://git.kernel.org/stable/c/0738cdb636c21ab552eaecf905efa4a6070e3ebc
https://git.kernel.org/stable/c/4e458abbb4a523f1413bfe15c079cf4e24c15b21
https://git.kernel.org/stable/c/52affc201fc22a1ab9a59ef0ed641a9adfcb8d13
https://git.kernel.org/stable/c/563fbefed46ae4c1f70cffb8eb54c02df480b2c2
https://git.kernel.org/stable/c/5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd
https://git.kernel.org/stable/c/7b97b5776daa0b39dbdadfea176f9cc0646d4a66
https://git.kernel.org/stable/c/8f06bb8c216bcd172394f61e557727e691b4cb24
https://git.kernel.org/stable/c/b8a045e2a9b234cfbc06cf36923886164358ddec
Source Url

Alert History

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0
1
Date Informations
2024-04-20 00:27:29
  • Multiple Updates
2024-04-11 00:27:26
  • First insertion