CVE-2023-39179

A flaw was found within the handling of SMB2 read requests 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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2023-39179	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2326529	Issue Tracking Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-24-586/	Not Applicable

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

History

06 Aug 2025, 13:21

Type	Values Removed	Values Added
First Time		Linux Linux linux Kernel
CPE		cpe:2.3:o:linux:linux_kernel:-:::::::*
References	~~() https://access.redhat.com/security/cve/CVE-2023-39179 -~~	() https://access.redhat.com/security/cve/CVE-2023-39179 - Third Party Advisory
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=2326529 -~~	() https://bugzilla.redhat.com/show_bug.cgi?id=2326529 - Issue Tracking, Third Party Advisory
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-24-586/ -~~	() https://www.zerodayinitiative.com/advisories/ZDI-24-586/ - Not Applicable

Information

Published : 2024-11-18 10:15

Updated : 2025-08-06 13:21

NVD link : CVE-2023-39179

Mitre link : CVE-2023-39179

CVE.ORG link : CVE-2023-39179

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-125

Out-of-bounds Read

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