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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | - | 6.6 |
| redhat / enterprise_linux | 8.0 | 8.0.x |
| fedoraproject / fedora | 38 | 38.x |