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 :
Aug. 19, 2025, 5:32 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- There is no known solution at this time.
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 | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2325516 | Issue Tracking Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-24-590/ | Third Party Advisory |
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.
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.
-
Reanalysis by [email protected]
Aug. 19, 2025
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.16 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.6 -
Initial Analysis by [email protected]
Aug. 05, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.16 Added Reference Type Fedora Project: https://access.redhat.com/security/cve/CVE-2023-4458 Types: Vendor Advisory Added Reference Type Fedora Project: https://bugzilla.redhat.com/show_bug.cgi?id=2325516 Types: Issue Tracking, Vendor Advisory Added Reference Type Fedora Project: https://www.zerodayinitiative.com/advisories/ZDI-24-590/ Types: Third Party Advisory -
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