VYPR
Unrated severityNVD Advisory· Published Oct 9, 2023· Updated Nov 8, 2025

Kernel: netfilter: xtables out-of-bounds read in u32_match_it()

CVE-2023-39192

Description

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.

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Affected products

225

Patches

Vulnerability mechanics

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