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cnvdChina National Vulnerability DatabaseCNVD-2023-56649
HistoryApr 23, 2023 - 12:00 a.m.

Linux Kernel af_can.c Denial of Service Vulnerability

2023-04-2300:00:00
China National Vulnerability Database
www.cnvd.org.cn
6

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.7%

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A denial of service vulnerability exists in the Linux Kernel that stems from a null pointer dereference issue found in the CAN protocol in net/can/af_can.c. ml_priv may not be initialized in the receive path of CAN frames, which could be exploited by an attacker to cause the system to crash or result in a denial of service.

CPENameOperatorVersion
linux linux kernellt6.1

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.7%