CVEvulnerability

CVE-2021-46283

5.5 MEDIUM Published 2022-01-11 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-01-11
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-665

Description

nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel before 5.12.13 allows local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace.

Affected configurations

• linux linux kernel (< 5.12.13)

Related

Weakness · CWE (1)

  • CWE-665 Improper Initialization weakness

References