VYPR
Unrated severityNVD Advisory· Published Aug 7, 2023· Updated Feb 25, 2026

Kernel: netfilter: nf_tables_newrule when adding a rule with nfta_rule_chain_id leads to use-after-free

CVE-2023-4147

Description

A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.

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Affected products

238

Patches

Vulnerability mechanics

References

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