4.0
MEDIUM
CVE-2023-4458
Linux ksmbd Attribute Validation Buffer Overflow
Description

A flaw was found within the parsing of extended attributes in the kernel ksmbd module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this to disclose sensitive information on affected installations of Linux. Only systems with ksmbd enabled are vulnerable to this CVE.

INFO

Published Date :

Nov. 14, 2024, 12:15 p.m.

Last Modified :

Nov. 15, 2024, 1:58 p.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2023-4458 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.

No affected product recoded yet

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-2023-4458.

URL Resource
https://access.redhat.com/security/cve/CVE-2023-4458
https://bugzilla.redhat.com/show_bug.cgi?id=2325516
https://www.zerodayinitiative.com/advisories/ZDI-24-590/

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-2023-4458 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-4458 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 Received by [email protected]

    Nov. 14, 2024

    Action Type Old Value New Value
    Added Description A flaw was found within the parsing of extended attributes in the kernel ksmbd module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this to disclose sensitive information on affected installations of Linux. Only systems with ksmbd enabled are vulnerable to this CVE.
    Added Reference Fedora Project https://access.redhat.com/security/cve/CVE-2023-4458 [No types assigned]
    Added Reference Fedora Project https://bugzilla.redhat.com/show_bug.cgi?id=2325516 [No types assigned]
    Added Reference Fedora Project https://www.zerodayinitiative.com/advisories/ZDI-24-590/ [No types assigned]
    Added CWE Fedora Project CWE-125
    Added CVSS V3.1 Fedora Project AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
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-2023-4458 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-2023-4458 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
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