CVE-2022-50213
netfilter: nf_tables: do not allow SET_ID to refer to another table
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/0d07039397527361850c554c192e749cfc879ea9
- https://git.kernel.org/stable/c/1a4b18b1ff11ba26f9a852019d674fde9d1d1cff
- https://git.kernel.org/stable/c/470ee20e069a6d05ae549f7d0ef2bdbcee6a81b2
- https://git.kernel.org/stable/c/77d3b5038b7462318f5183e2ad704b01d57215a2
- https://git.kernel.org/stable/c/f4fa03410f7c5f5bd8f90e9c11e9a8c4b526ff6f
References (7)
CVSS
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