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vulnerability

Ubuntu: (CVE-2022-50213): linux vulnerability

Severity
6
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:C)
Published
Jun 18, 2025
Added
Jun 26, 2025
Modified
Mar 27, 2026

Description

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.

Solution

no-fix-ubuntu-package

References

    Title
    Rapid7 Labs

    2026 Global Threat Landscape Report

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