CVE-2023-52440 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()

If authblob->SessionKey.Length is bigger than session key
size(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes.
cifs_arc4_crypt copy to session key array from SessionKey from client.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00464.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux Subscribe	Linux Kernel Subscribe

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba
https://git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254
https://git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4
https://git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809
https://git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20

History

Sat, 12 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.01085}`	epss `{'score': 0.00801}`

Wed, 11 Sep 2024 13:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-02-21T07:21:00.438Z

Updated: 2025-05-04T07:36:35.594Z

Reserved: 2024-02-20T12:30:33.291Z

Link: CVE-2023-52440

Vulnrichment

Updated: 2024-08-02T22:55:41.777Z

NVD

Status : Modified

Published: 2024-02-21T08:15:45.203

Modified: 2024-11-21T08:39:45.973

Link: CVE-2023-52440

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-119

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