The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9221 advisory.

    - Revert 'x86/vmlinux: Use INT3 instead of NOP for linker fill bytes' (John Donnelly)  [Orabug: 32576398]     {CVE-2021-3411}
    - netfilter: x_tables: Use correct memory barriers. (Mark Tomlinson)  [Orabug: 32709120]  {CVE-2021-29650}
    - perf/x86/intel: Fix a crash caused by zero PEBS status (Kan Liang)  [Orabug: 32669468]  {CVE-2021-28971}
    - btrfs: fix race when cloning extent buffer during rewind of an old root (Filipe Manana)  [Orabug:
    32669450]  {CVE-2021-28964}
    - vhost-vdpa: set v->config_ctx to NULL if eventfd_ctx_fdget() fails (Stefano Garzarella)  [Orabug:
    32696005]  {CVE-2021-29266}
    - vhost-vdpa: fix use-after-free of v->config_ctx (Stefano Garzarella)  [Orabug: 32696005]     {CVE-2021-29266}
    - fuse: fix live lock in fuse_iget() (Amir Goldstein)  [Orabug: 32669269]  {CVE-2021-28950}
    - fuse: fix bad inode (Miklos Szeredi)  [Orabug: 32669269]  {CVE-2021-28950}
    - Xen/gnttab: handle p2m update errors on a per-slot basis (Jan Beulich)  [Orabug: 32651473]     {CVE-2021-28038}
    - xen-blkback: don't leak persistent grants from xen_blkbk_map() (Jan Beulich)  [Orabug: 32697850]     {CVE-2021-28688}

Tenable has extracted the preceding description block directly from the Oracle 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

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9221)

high Nessus Plugin ID 149356

Version 1.7

Version 1.6

Version 1.5

Version 1.4

Version 1.4

Version 1.7 Feb 10, 2026, 11:15 AM Detection (updated detection logic) Plugin Feed: 202602101115
Version 1.6 Oct 23, 2024, 12:00 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Plugin metadata Plugin Feed: 202410230000
Version 1.5 Jan 16, 2024, 8:55 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202401162055
Version 1.4 Jan 2, 2024, 2:43 PM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:POC/RL:OF/RC:C". "CVSSv3 temporal vector" set to "CVSS:3.0/E:P/RL:O/RC:C") Exploit attributes ("Exploit available" set to "True". "Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202401021443
Version 1.4 Jan 16, 2024, 5:39 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202401161739