5.5
MEDIUM CVSS 3.1
CVE-2023-52631
"Linux NTFS3 NULL Pointer Dereference in fs/ntfs3"
Description

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix an NULL dereference bug The issue here is when this is called from ntfs_load_attr_list(). The "size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow on a 64bit systems but on 32bit systems the "+ 1023" can overflow and the result is zero. This means that the kmalloc will succeed by returning the ZERO_SIZE_PTR and then the memcpy() will crash with an Oops on the next line.

INFO

Published Date :

April 2, 2024, 7:15 a.m.

Last Modified :

April 8, 2025, 7:28 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2023-52631 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 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update the Linux kernel to address a NULL pointer dereference vulnerability.
  • Update the affected Linux kernel package.
  • Reboot the system to apply the update.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-52631 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-2023-52631 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-2023-52631 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-52631 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]

    Apr. 08, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.7.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.17 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.78 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15 up to (excluding) 5.15.149
    Added Reference Type CVE: https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7 Types: 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/686820fe141ea0220fc6fdfc7e5694f915cf64b2
    Added Reference https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b
    Added Reference https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c
    Added Reference https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6
    Added Reference https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 31, 2024

    Action Type Old Value New Value
    Added CWE CISA-ADP CWE-476
    Added CVSS V3.1 CISA-ADP AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 29, 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

    Apr. 02, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix an NULL dereference bug The issue here is when this is called from ntfs_load_attr_list(). The "size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow on a 64bit systems but on 32bit systems the "+ 1023" can overflow and the result is zero. This means that the kmalloc will succeed by returning the ZERO_SIZE_PTR and then the memcpy() will crash with an Oops on the next line.
    Added Reference kernel.org https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c [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