5.5
MEDIUM
CVE-2021-47526
Linux Kernel Null Pointer Dereference Vulnerability in Serial Liteuart Driver
Description

In the Linux kernel, the following vulnerability has been resolved: serial: liteuart: Fix NULL pointer dereference in ->remove() drvdata has to be set in _probe() - otherwise platform_get_drvdata() causes null pointer dereference BUG in _remove().

INFO

Published Date :

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

Last Modified :

June 10, 2024, 6:40 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-2021-47526 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-2021-47526.

URL Resource
https://git.kernel.org/stable/c/0f55f89d98c8b3e12b4f55f71c127a173e29557c Patch
https://git.kernel.org/stable/c/189c99c629bbf85916c02c153f904649cc0a9d7f 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-2021-47526 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47526 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.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 12, 2024

    Action Type Old Value New Value
  • 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/0f55f89d98c8b3e12b4f55f71c127a173e29557c No Types Assigned https://git.kernel.org/stable/c/0f55f89d98c8b3e12b4f55f71c127a173e29557c Patch
    Changed Reference Type https://git.kernel.org/stable/c/189c99c629bbf85916c02c153f904649cc0a9d7f No Types Assigned https://git.kernel.org/stable/c/189c99c629bbf85916c02c153f904649cc0a9d7f Patch
    Added CWE NIST CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 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: serial: liteuart: Fix NULL pointer dereference in ->remove() drvdata has to be set in _probe() - otherwise platform_get_drvdata() causes null pointer dereference BUG in _remove().
    Added Reference kernel.org https://git.kernel.org/stable/c/189c99c629bbf85916c02c153f904649cc0a9d7f [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/0f55f89d98c8b3e12b4f55f71c127a173e29557c [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-2021-47526 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-2021-47526 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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