5.5
MEDIUM
CVE-2021-47331
Linux Kernel USBArchitecture NULL Pointer Dereference
Description

In the Linux kernel, the following vulnerability has been resolved: usb: common: usb-conn-gpio: fix NULL pointer dereference of charger When power on system with OTG cable, IDDIG's interrupt arises before the charger registration, it will cause a NULL pointer dereference, fix the issue by registering the power supply before requesting IDDIG/VBUS irq.

INFO

Published Date :

May 21, 2024, 3:15 p.m.

Last Modified :

Dec. 24, 2024, 4:16 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-2021-47331 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

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-2021-47331 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47331 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. 24, 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-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.52 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.13 up to (excluding) 5.13.4
    Changed Reference Type https://git.kernel.org/stable/c/1a133a0996d6b4c83509d570ed4edcba34c44f25 No Types Assigned https://git.kernel.org/stable/c/1a133a0996d6b4c83509d570ed4edcba34c44f25 Patch
    Changed Reference Type https://git.kernel.org/stable/c/1a133a0996d6b4c83509d570ed4edcba34c44f25 No Types Assigned https://git.kernel.org/stable/c/1a133a0996d6b4c83509d570ed4edcba34c44f25 Patch
    Changed Reference Type https://git.kernel.org/stable/c/436906fd248e018403bcda61a9311d9af02912f1 No Types Assigned https://git.kernel.org/stable/c/436906fd248e018403bcda61a9311d9af02912f1 Patch
    Changed Reference Type https://git.kernel.org/stable/c/436906fd248e018403bcda61a9311d9af02912f1 No Types Assigned https://git.kernel.org/stable/c/436906fd248e018403bcda61a9311d9af02912f1 Patch
    Changed Reference Type https://git.kernel.org/stable/c/880287910b1892ed2cb38977893b947382a09d21 No Types Assigned https://git.kernel.org/stable/c/880287910b1892ed2cb38977893b947382a09d21 Patch
    Changed Reference Type https://git.kernel.org/stable/c/880287910b1892ed2cb38977893b947382a09d21 No Types Assigned https://git.kernel.org/stable/c/880287910b1892ed2cb38977893b947382a09d21 Patch
    Changed Reference Type https://git.kernel.org/stable/c/8e8d910e9a3a7fba86140aff4924c30955ab228b No Types Assigned https://git.kernel.org/stable/c/8e8d910e9a3a7fba86140aff4924c30955ab228b Patch
    Changed Reference Type https://git.kernel.org/stable/c/8e8d910e9a3a7fba86140aff4924c30955ab228b No Types Assigned https://git.kernel.org/stable/c/8e8d910e9a3a7fba86140aff4924c30955ab228b 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/1a133a0996d6b4c83509d570ed4edcba34c44f25
    Added Reference https://git.kernel.org/stable/c/436906fd248e018403bcda61a9311d9af02912f1
    Added Reference https://git.kernel.org/stable/c/880287910b1892ed2cb38977893b947382a09d21
    Added Reference https://git.kernel.org/stable/c/8e8d910e9a3a7fba86140aff4924c30955ab228b
  • 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. 21, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: usb: common: usb-conn-gpio: fix NULL pointer dereference of charger When power on system with OTG cable, IDDIG's interrupt arises before the charger registration, it will cause a NULL pointer dereference, fix the issue by registering the power supply before requesting IDDIG/VBUS irq.
    Added Reference kernel.org https://git.kernel.org/stable/c/8e8d910e9a3a7fba86140aff4924c30955ab228b [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/436906fd248e018403bcda61a9311d9af02912f1 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/1a133a0996d6b4c83509d570ed4edcba34c44f25 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/880287910b1892ed2cb38977893b947382a09d21 [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-2021-47331 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-2021-47331 weaknesses.

CVSS31 - Vulnerability Scoring System
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Latest DB Update: May. 15, 2025 10:17