Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 6.6 |
| Redhat | Enterprise Linux | 8.0 |
| Fedoraproject | Fedora | 38 |
Related Weaknesses (CWE)
References
- 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 TrackingPatchThird 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 TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
FAQ
What is CVE-2023-39189?
CVE-2023-39189 is a vulnerability with a CVSS score of 5.1 (MEDIUM). 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_NE...
How severe is CVE-2023-39189?
CVE-2023-39189 has been rated MEDIUM with a CVSS base score of 5.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-39189?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, Fedoraproject Fedora.