Detections
Analytics
Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000882)
high Nessus Plugin ID 283865
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-2026-000882 advisory.The replace_map_fd_with_map_ptr function in kernel/bpf/verifier.c in the Linux kernel before 4.5.5 does not properly maintain an fd data structure, which allows local users to gain privileges or cause a denial of service (use-after-free) via crafted BPF instructions that reference an incorrect file descriptor.
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?eea86dc9
https://security-tracker.debian.org/tracker/CVE-2016-4557
https://www.exploit-db.com/exploits/40759/
http://www.nessus.org/u?23cc72e8
http://www.nessus.org/u?96f65f4b
http://www.nessus.org/u?9e754eed
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5
http://www.openwall.com/lists/oss-security/2016/05/06/4
https://bugs.chromium.org/p/project-zero/issues/detail?id=808
Plugin Details
Severity: High
ID: 283865
File Name: unity_linux_UTSA-2026-000882.nasl
Version: 1.2
Type: local
Published: 1/14/2026
Updated: 1/15/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.9
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 6.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2016-4557
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7.5
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:H/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: 1/14/2026
Vulnerability Publication Date: 5/6/2016
Reference Information
CVE: CVE-2016-4557