5.5
MEDIUM CVSS 3.1
CVE-2021-47020
Linux Kernel: Soundwire Stream Memory Leak
Description

In the Linux kernel, the following vulnerability has been resolved: soundwire: stream: fix memory leak in stream config error path When stream config is failed, master runtime will release all slave runtime in the slave_rt_list, but slave runtime is not added to the list at this time. This patch frees slave runtime in the config error path to fix the memory leak.

INFO

Published Date :

Feb. 29, 2024, 11:15 p.m.

Last Modified :

Dec. 10, 2024, 5:03 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2021-47020 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
A memory leak vulnerability in the Linux kernel's soundwire stream has been addressed.
  • Update the affected Linux kernel packages.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-47020 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-47020 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-47020 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47020 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Dec. 10, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE NIST CWE-401
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.18 up to (excluding) 4.19.191 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.119 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.37 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.11.21 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.12 up to (excluding) 5.12.4
    Changed Reference Type https://git.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88 No Types Assigned https://git.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88 Patch
    Changed Reference Type https://git.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88 No Types Assigned https://git.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88 Patch
    Changed Reference Type https://git.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80 No Types Assigned https://git.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80 Patch
    Changed Reference Type https://git.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80 No Types Assigned https://git.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80 Patch
    Changed Reference Type https://git.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359f No Types Assigned https://git.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359f Patch
    Changed Reference Type https://git.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359f No Types Assigned https://git.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359f Patch
    Changed Reference Type https://git.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a No Types Assigned https://git.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a Patch
    Changed Reference Type https://git.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a No Types Assigned https://git.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a Patch
    Changed Reference Type https://git.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002 No Types Assigned https://git.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002 Patch
    Changed Reference Type https://git.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002 No Types Assigned https://git.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002 Patch
    Changed Reference Type https://git.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdea No Types Assigned https://git.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdea Patch
    Changed Reference Type https://git.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdea No Types Assigned https://git.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdea Patch
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88
    Added Reference https://git.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80
    Added Reference https://git.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359f
    Added Reference https://git.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a
    Added Reference https://git.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002
    Added Reference https://git.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdea
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 28, 2024

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Feb. 29, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: soundwire: stream: fix memory leak in stream config error path When stream config is failed, master runtime will release all slave runtime in the slave_rt_list, but slave runtime is not added to the list at this time. This patch frees slave runtime in the config error path to fix the memory leak.
    Added Reference Linux https://git.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdea [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359f [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact