CVE-2021-46283

kernel: DoS in nf_tables_newset in net/netfilter/nf_tables_api.c

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · January 12, 2022

Updated · November 22, 2025

Description

A NULL pointer dereference flaw in the Linux kernel's netfilter subsystem was found in the way user set a netfilter table expression. A local user could use this flaw to crash the system.

Statement

There was no shipped kernel version that was seen affected by this problem. These files are not built in our source code.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference