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cnvdChina National Vulnerability DatabaseCNVD-2023-58993
HistoryJan 04, 2023 - 12:00 a.m.

Linux kernel buffer overflow vulnerability (CNVD-2023-58993)

2023-01-0400:00:00
China National Vulnerability Database
www.cnvd.org.cn
8

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

5.5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:N/A:P

0.001 Low

EPSS

Percentile

28.0%

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. Linux kernel suffers from a buffer overflow vulnerability that stems from an issue found in ksmbd where fs/ksmbd/smb2pdu.c lacks length validation in the unfilled case of smb2_write. An attacker can exploit this vulnerability to remotely execute arbitrary code.

CPENameOperatorVersion
linux linux kernel >=5.15,lt5.18.8

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

5.5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:N/A:P

0.001 Low

EPSS

Percentile

28.0%