Detections
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Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002446)
medium Nessus Plugin ID 287077
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-2026-002446 advisory.The BPF_S_ANC_NLATTR_NEST extension implementation in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 uses the reverse order in a certain subtraction, which allows local users to cause a denial of service (over-read and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr_nest function before the vulnerability was announced.
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?aed7aaf2
http://www.nessus.org/u?fa9ea7dd
http://linux.oracle.com/errata/ELSA-2014-3052.html
http://secunia.com/advisories/58990
http://secunia.com/advisories/59311
http://secunia.com/advisories/59597
http://secunia.com/advisories/60613
http://www.debian.org/security/2014/dsa-2949
http://www.openwall.com/lists/oss-security/2014/05/09/6
http://www.securityfocus.com/bid/67321
http://www.securitytracker.com/id/1038201
http://www.ubuntu.com/usn/USN-2251-1
http://www.ubuntu.com/usn/USN-2252-1
http://www.ubuntu.com/usn/USN-2259-1
http://www.ubuntu.com/usn/USN-2261-1
http://www.ubuntu.com/usn/USN-2262-1
http://www.ubuntu.com/usn/USN-2263-1
http://www.ubuntu.com/usn/USN-2264-1
http://www.nessus.org/u?fe3c0c54
Plugin Details
Severity: Medium
ID: 287077
File Name: unity_linux_UTSA-2026-002446.nasl
Version: 1.1
Type: local
Published: 1/15/2026
Updated: 1/15/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 4.9
Temporal Score: 3.8
Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2014-3145
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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: 1/15/2026
Vulnerability Publication Date: 5/9/2014
Reference Information
CVE: CVE-2014-3145