CVE-2023-39189 Information

Description

A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read leading to a crash or information disclosure.

Reference

https://access.redhat.com/security/cve/CVE-2023-39189 https://bugzilla.redhat.com/show_bug.cgi?id=2226777