Detections
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Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002315)
medium Nessus Plugin ID 287773
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-2026-002315 advisory.Use-after-free vulnerability in the path_openat function in fs/namei.c in the Linux kernel 3.x and 4.x before 4.0.4 allows local users to cause a denial of service or possibly have unspecified other impact via O_TMPFILE filesystem operations that leverage a duplicate cleanup operation.
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?dc82f0ad
http://www.nessus.org/u?9698e68d
http://twitter.com/grsecurity/statuses/597127122910490624
http://www.debian.org/security/2015/dsa-3329
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.4
http://www.openwall.com/lists/oss-security/2015/08/01/5
http://www.securityfocus.com/bid/76142
http://www.ubuntu.com/usn/USN-2680-1
http://www.ubuntu.com/usn/USN-2681-1
https://bugzilla.redhat.com/show_bug.cgi?id=1250047
http://www.nessus.org/u?9f5a65d0
https://security-tracker.debian.org/tracker/CVE-2015-5706
https://source.android.com/security/bulletin/2017-01-01.html
Plugin Details
Severity: Medium
ID: 287773
File Name: unity_linux_UTSA-2026-002315.nasl
Version: 1.1
Type: local
Published: 1/15/2026
Updated: 1/15/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 3.4
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2015-5706
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 4.8
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:U/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 Ease: No known exploits are available
Patch Publication Date: 1/15/2026
Vulnerability Publication Date: 8/1/2015
Reference Information
CVE: CVE-2015-5706