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416baaa9-dc9f-4396-8d5f-8c081fb06d67NVD:CVE-2023-52440

HistoryFeb 21, 2024 - 8:15 a.m.

CVE-2023-52440

2024-02-2108:15:45

CWE-119

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

web.nvd.nist.gov

linux kernel

ksmbd

slub overflow

vulnerability

key exchange codes

cve-2023-52440

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

Percentile

15.9%

JSON

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.

Affected configurations

Nvd

Node

linuxlinux_kernelRange5.17.0–6.1.52

linuxlinux_kernelRange6.2.0–6.4.15

linuxlinux_kernelRange6.5.0–6.5.2

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

References

git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba

git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254

git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4

git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809

git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

Percentile

15.9%

JSON

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