Resolution for Security Vulnerability of Use-After-Free in Netfilter nf_tables (CVE-2023-32233)

Solution In Progress - Updated -


A use-after-free flaw was found in the Netfilter nf_tables (net/netfilter/nf_tables_api.c) in the Linux kernel. In order to exploit this flaw, the attacker must have CAP_NET_ADMIN privileges and be able to manipulate netfilter entries. This vulnerability may lead to arbitrary code execution, and kernel information leak issue.


  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 7
  • nf_tables

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