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.
Advisories
Source ID Title
EUVD EUVD EUVD-2021-32972 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.
Fixes

Solution

No solution given by the vendor.


Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T05:02:10.888Z

Reserved: 2022-01-11T00:00:00

Link: CVE-2021-46283

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-01-11T22:15:07.683

Modified: 2024-11-21T06:33:50.753

Link: CVE-2021-46283

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-01-12T00:00:00Z

Links: CVE-2021-46283 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses