Medium · published October 9, 2023
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.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | < 6.6 | 6.6 |
| redhat/enterprise_linux | all versions | — |
| fedoraproject/fedora | all versions | — |