5.5
MEDIUM
CVE-2021-47529
iwlwifi Memory Leak in Error Handling
Description

In the Linux kernel, the following vulnerability has been resolved: iwlwifi: Fix memory leaks in error handling path Should an error occur (invalid TLV len or memory allocation failure), the memory already allocated in 'reduce_power_data' should be freed before returning, otherwise it is leaking.

INFO

Published Date :

May 24, 2024, 3:15 p.m.

Last Modified :

June 10, 2024, 6:36 p.m.

Source :

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

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-47529 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
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-47529.

URL Resource
https://git.kernel.org/stable/c/4768935c25403ba96e7a745645df24a51a774b7e Patch
https://git.kernel.org/stable/c/a571bc28326d9f3e13f5f2d9cda2883e0631b0ce Patch

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-2021-47529 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47529 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]

    Jun. 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
    Changed Reference Type https://git.kernel.org/stable/c/4768935c25403ba96e7a745645df24a51a774b7e No Types Assigned https://git.kernel.org/stable/c/4768935c25403ba96e7a745645df24a51a774b7e Patch
    Changed Reference Type https://git.kernel.org/stable/c/a571bc28326d9f3e13f5f2d9cda2883e0631b0ce No Types Assigned https://git.kernel.org/stable/c/a571bc28326d9f3e13f5f2d9cda2883e0631b0ce Patch
    Added CWE NIST CWE-401
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.14 up to (excluding) 5.15.7
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 28, 2024

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

    May. 24, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: iwlwifi: Fix memory leaks in error handling path Should an error occur (invalid TLV len or memory allocation failure), the memory already allocated in 'reduce_power_data' should be freed before returning, otherwise it is leaking.
    Added Reference kernel.org https://git.kernel.org/stable/c/4768935c25403ba96e7a745645df24a51a774b7e [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/a571bc28326d9f3e13f5f2d9cda2883e0631b0ce [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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-47529 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-2021-47529 weaknesses.

CVSS31 - Vulnerability Scoring System
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