Executive Summary

Informations
Name CVE-2021-47655 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: venus: vdec: fixed possible memory leak issue

The venus_helper_alloc_dpb_bufs() implementation allows an early return on an error path when checking the id from ida_alloc_min() which would not release the earlier buffer allocation.

Move the direct kfree() from the error checking of dma_alloc_attrs() to the common fail path to ensure that allocations are released on all error paths in this function.

Addresses-Coverity: 1494120 ("Resource leak")

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-47655

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-401 Failure to Release Memory Before Removing Last Reference ('Memory Leak')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 7
Os 3525

Sources (Detail)

https://git.kernel.org/stable/c/55bccafc246b2e64763a155ec454470c07a54a6e
https://git.kernel.org/stable/c/5cedfe8aaf1875a5305897107b7f298db4260019
https://git.kernel.org/stable/c/5f89d05ba93df9c2cdfe493843f93288e55e99eb
https://git.kernel.org/stable/c/8403fdd775858a7bf04868d43daea0acbe49ddfc
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 21:21:29
  • Multiple Updates
2025-02-26 17:20:34
  • First insertion