Detections
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Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003848)
medium Nessus Plugin ID 288234
Synopsis
The Unity Linux host is missing one or more security updates.Description
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003848 advisory.kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.
Tenable has extracted the preceding description block directly from the Unity Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected kernel package.See Also
http://www.nessus.org/u?37ab5aa8
http://www.nessus.org/u?11d3137d
http://www.nessus.org/u?e3922025
http://www.nessus.org/u?49ad3708
http://www.securityfocus.com/bid/106827
https://bugs.chromium.org/p/project-zero/issues/detail?id=1711
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.6
http://www.nessus.org/u?46244887
http://www.nessus.org/u?ef6081b4
https://security-tracker.debian.org/tracker/CVE-2019-7308
https://support.f5.com/csp/article/K43030517
http://www.nessus.org/u?7675af2e
https://usn.ubuntu.com/3930-1/
https://usn.ubuntu.com/3930-2/
Plugin Details
Severity: Medium
ID: 288234
File Name: unity_linux_UTSA-2026-003848.nasl
Version: 1.2
Type: local
Published: 1/16/2026
Updated: 1/17/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
CVSS v2
Risk Factor: Medium
Base Score: 4.7
Temporal Score: 3.7
Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N
CVSS Score Source: CVE-2019-7308
CVSS v3
Risk Factor: Medium
Base Score: 5.6
Temporal Score: 5.1
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
Required KB Items: Host/local_checks_enabled, Host/UOS-Server/release, Host/UOS-Server/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 1/16/2026
Vulnerability Publication Date: 1/31/2019
Reference Information
CVE: CVE-2019-7308