The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:5256 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * kernel: netfilter: nf_tables: disallow anonymous set with timeout flag (CVE-2024-26642)

    * kernel: netfilter: nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain     (CVE-2024-26808)

    * kernel: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886)

    * kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection() (CVE-2024-26993)

    * kernel: dmaengine/idxd: hardware erratum allows potential security problem with direct access by     untrusted application (CVE-2024-21823)

    * kernel: netfilter: nf_tables: use timestamp to check for set element timeout (CVE-2024-27397)

    * kernel: netfilter: nft_flow_offload: reset dst in route object after setting up flow (CVE-2024-27403)

    * kernel: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get() (CVE-2024-35898)

    * kernel: netfilter: nf_tables: discard table flag update with pending basechain deletion (CVE-2024-35897)

    * kernel: net: CVE-2024-36971 kernel: UAF in network route management (CVE-2024-36971)

    * kernel: ionic: fix use after netif_napi_del() (CVE-2024-39502)

    * kernel: scsi: qedi: Fix crash while reading debugfs attribute (CVE-2024-40978)

    * kernel: net/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change (CVE-2021-47624)

    * kernel: virtio-net: tap: mlx5_core short frame denial of service (CVE-2024-41090)

    * kernel: virtio-net: tun: mlx5_core short frame denial of service (CVE-2024-41091)

    Bug Fix(es):

    * kernel-rt: update RT source tree to the latest RHEL-9.0.z Batch 19 (JIRA:RHEL-45540)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

RHEL 9 : kernel-rt (RHSA-2024:5256)

high Nessus Plugin ID 205403

Version 1.3

Version 1.2

Version 1.1

Version 1.3 Sep 18, 2025, 9:16 AM CVSSv2 score source (changed from "CVE-2024-36971" to "CVE-2024-39502") Plugin Feed: 202509180916
Version 1.2 Nov 7, 2024, 5:29 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Plugin metadata Plugin Feed: 202411071729
Version 1.1 Aug 13, 2024, 9:21 AM New Plugin Feed: 202408130921