Executive Summary

Informations
Name CVE-2021-47657 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:

drm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()

If virtio_gpu_object_shmem_init() fails (e.g. due to fault injection, as it happened in the bug report by syzbot), virtio_gpu_array_put_free() could be called with objs equal to NULL.

Ensure that objs is not NULL in virtio_gpu_array_put_free(), or otherwise return from the function.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-47657

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/6b79f96f4a23846516e5e6e4dd37fc06f43a60dd
https://git.kernel.org/stable/c/abc9ad36df16e27ac1c665085157f1a082d39bac
https://git.kernel.org/stable/c/ac92b474eeeed75b8660374ba1d129a121c09da8
https://git.kernel.org/stable/c/b094fece3810c71ceee6f0921676cb65d4e68c5a
Source Url

Alert History

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Date Informations
2025-03-29 02:58:11
  • Multiple Updates
2025-03-28 13:28:36
  • Multiple Updates
2025-03-28 02:42:59
  • Multiple Updates
2025-03-18 21:21:27
  • Multiple Updates
2025-02-26 17:20:34
  • First insertion