CVE-2023-39189

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.

• CWE-125
• CWE-125

• https://access.redhat.com/errata/RHSA-2024:2394
• https://access.redhat.com/errata/RHSA-2024:2950
• https://access.redhat.com/errata/RHSA-2024:3138
• https://access.redhat.com/security/cve/CVE-2023-39189Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2226777Issue Tracking, Patch, Third Party Advisory
• https://access.redhat.com/errata/RHSA-2024:2394
• https://access.redhat.com/errata/RHSA-2024:2950
• https://access.redhat.com/errata/RHSA-2024:3138
• https://access.redhat.com/security/cve/CVE-2023-39189Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2226777Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Published

Oct 9, 2023

Last Modified

Jun 17, 2026

Status

Modified

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