CVE-2022-50213
Linux Kernel Netfilter Use-After-Free Vulnerability
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.
INFO
Published Date :
June 18, 2025, 11:15 a.m.
Last Modified :
June 18, 2025, 1:47 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2022-50213.
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The following table lists the changes that have been made to the
CVE-2022-50213 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 18, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/0d07039397527361850c554c192e749cfc879ea9 Added Reference https://git.kernel.org/stable/c/1a4b18b1ff11ba26f9a852019d674fde9d1d1cff Added Reference https://git.kernel.org/stable/c/470ee20e069a6d05ae549f7d0ef2bdbcee6a81b2 Added Reference https://git.kernel.org/stable/c/77d3b5038b7462318f5183e2ad704b01d57215a2 Added Reference https://git.kernel.org/stable/c/f4fa03410f7c5f5bd8f90e9c11e9a8c4b526ff6f Added Reference https://git.kernel.org/stable/c/faafd9286f1355c76fe9ac3021c280297213330e Added Reference https://git.kernel.org/stable/c/fab2f61cc3b0e441b1749f017cfee75f9bbaded7
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50213 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-50213
weaknesses.