Red Hat: CVE-2023-39192: kernel: netfilter: xtables out-of-bounds read in u32_match_it() (Multiple Advisories)

A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds read by setting the size fields with a value beyond the array boundaries, leading to a crash or information disclosure.