Detections
Analytics
Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2026-50234)
high Nessus Plugin ID 306887
Language:
Synopsis
The remote Oracle Linux host is missing one or more security updates.Description
The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50234 advisory.- macvlan: fix possible UAF in macvlan_forward_source() (Eric Dumazet) [Orabug: 38887731] {CVE-2026-23001}
- macvlan: fix error recovery in macvlan_common_newlink() (Eric Dumazet) [Orabug: 38970510] {CVE-2026-23209}
- io_uring: fix filename leak in __io_openat_prep() (Prithvi Tambewagh) [Orabug: 39064937] {CVE-2025-68814}
- xfrm: also call xfrm_state_delete_tunnel at destroy time for states that were never added (Sabrina Dubroca) [Orabug: 38934000,39004270] {CVE-2025-40256}
- xfrm: delete x->tunnel as we delete x (Sabrina Dubroca) [Orabug: 38730493,39016501] {CVE-2025-40215}
- crypto: af_alg - Fix incorrect boolean values in af_alg_ctx (Eric Biggers) [Orabug:
38879907,38884602,39004445] {CVE-2025-40022}
- crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (Herbert Xu) [Orabug: 38537469,38855313] {CVE-2025-39964}
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.
Solution
Update the affected packages.See Also
Plugin Details
Severity: High
ID: 306887
File Name: oraclelinux_ELSA-2026-50234.nasl
Version: 1.3
Type: Local
Agent: unix
Published: 4/17/2026
Updated: 4/17/2026
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2026-23209
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:oracle:linux:8:10:baseos_patch, p-cpe:/a:oracle:linux:kernel-uek-container, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, cpe:/o:oracle:linux:7, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek-container-debug, p-cpe:/a:oracle:linux:kernel-uek-tools, p-cpe:/a:oracle:linux:kernel-uek
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux
Exploit Ease: No known exploits are available
Patch Publication Date: 4/15/2026
Vulnerability Publication Date: 1/13/2026