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nvd[email protected]NVD:CVE-2023-3439
HistoryJun 28, 2023 - 9:15 p.m.

CVE-2023-3439

2023-06-2821:15:10
CWE-416
web.nvd.nist.gov
6
linux
mctp protocol
denial of service
cve-2023-3439
use-after-free

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

5.3

Confidence

High

EPSS

0

Percentile

5.1%

A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device’s relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.

Affected configurations

Nvd
Node
linuxlinux_kernelRange<5.18
OR
linuxlinux_kernelMatch5.18rc1
OR
linuxlinux_kernelMatch5.18rc2
OR
linuxlinux_kernelMatch5.18rc3
OR
linuxlinux_kernelMatch5.18rc4
VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel5.18cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*
linuxlinux_kernel5.18cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*
linuxlinux_kernel5.18cpe:2.3:o:linux:linux_kernel:5.18:rc3:*:*:*:*:*:*
linuxlinux_kernel5.18cpe:2.3:o:linux:linux_kernel:5.18:rc4:*:*:*:*:*:*

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

5.3

Confidence

High

EPSS

0

Percentile

5.1%