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MitreCVE-2021-3348

HistoryFeb 01, 2021 - 4:15 a.m.

CVE-2021-3348

2021-02-0104:15:14

CWE-362

CWE-416

mitre

web.nvd.nist.gov

278

linux

kernel

nbd_add_socket

use-after-free

vulnerability

cve-2021-3348

nvd

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6.7

Confidence

High

EPSS

Percentile

5.1%

JSON

nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71.

Affected configurations

Nvd

Node

linuxlinux_kernelRange≤5.10.12

Node

debiandebian_linuxMatch9.0

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*