CVE-2022-50213

published 2025-06-18

CVE-2022-50213: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: do not allow SET_ID to refer to another table When doing lookups for…

Priority P3 39 high 7.8 CVSS 3.1

AV L AC L PR L UI N S U C H I H A H

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: do not allow SET_ID to refer to another table

When doing lookups for sets on the same batch by using its ID, a set from a
different table can be used.

Then, when the table is removed, a reference to the set may be kept after
the set is freed, leading to a potential use-after-free.

When looking for sets by ID, use the table that was used for the lookup by
name, and only return sets belonging to that same table.

This fixes CVE-2022-2586, also reported as ZDI-CAN-17470.

Affected

11 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 6.0.2-1 (bookworm)	linux 6.0.2-1 (bookworm)
linux	linux_kernel	>= 0 < 5.10.140-1	5.10.140-1
linux	linux_kernel	>= 0 < 6.0.2-1	6.0.2-1
linux	linux_kernel	>= 0 < 6.0.2-1	6.0.2-1
linux	linux_kernel	>= 0 < 6.0.2-1	6.0.2-1
linux	linux_kernel	>= 3.16 < 4.19.256	4.19.256
linux	linux_kernel	>= 4.20 < 5.4.211	5.4.211
linux	linux_kernel	>= 5.11 < 5.15.61	5.15.61
linux	linux_kernel	>= 5.16 < 5.18.18	5.18.18
linux	linux_kernel	>= 5.19 < 5.19.2	5.19.2
linux	linux_kernel	>= 5.5 < 5.10.137	5.10.137

CVSS provenance

nvd v3.1 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

osv 7.8 HIGH

vendor_debian 5.3 MEDIUM

vendor_redhat 5.3 MEDIUM

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