Executive Summary

Informations
Name CVE-2021-47645 First vendor Publication 2025-02-26
Vendor Cve Last vendor Modification 2025-03-18

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low 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

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

media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com

On the case tmp_dcim=1, the index of buffer is miscalculated. This generate a NULL pointer dereference later.

So let's fix the calcul and add a check to prevent this to reappear.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-47645

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 7
Os 3525

Sources (Detail)

https://git.kernel.org/stable/c/20811bbe685ca3eddd34b0c750860427d7030910
https://git.kernel.org/stable/c/20db2ed1e2f9fcd417fa67853e5154f0c2537d6c
https://git.kernel.org/stable/c/7e76f3ed7ab2ae026c6ef9cc23096a7554af8c52
https://git.kernel.org/stable/c/bafec1a6ba4b187a7fcdcfce0faebdc623d4ef8e
https://git.kernel.org/stable/c/e3b86f4e558cea9eed71d894df2f19b10d60a207
Source Url

Alert History

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Date Informations
2025-03-29 02:58:10
  • Multiple Updates
2025-03-28 13:28:34
  • Multiple Updates
2025-03-28 02:42:58
  • Multiple Updates
2025-03-18 21:21:35
  • Multiple Updates
2025-02-26 17:20:34
  • First insertion