Detections
Analytics

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-992190)

medium Nessus Plugin ID 280490

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-2025-992190 advisory.

 In the Linux kernel, the following vulnerability has been resolved:

 ubifs: Free memory for tmpfile name

 When opening a ubifs tmpfile on an encrypted directory, function fscrypt_setup_filename allocates memory for the name that is to be stored in the directory entry, but after the name has been copied to the directory entry inode, the memory is not freed.

 When running kmemleak on it we see that it is registered as a leak. The report below is triggered by a simple program 'tmpfile' just opening a tmpfile:

 unreferenced object 0xffff88810178f380 (size 32):
 comm tmpfile, pid 509, jiffies 4294934744 (age 1524.742s) backtrace:
 __kmem_cache_alloc_node
 __kmalloc fscrypt_setup_filename ubifs_tmpfile vfs_tmpfile path_openat

 Free this memory after it has been copied to the inode.

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?1ab6b6b2

http://www.nessus.org/u?51c30b33

https://nvd.nist.gov/vuln/detail/CVE-2023-53276

Plugin Details

Severity: Medium

ID: 280490

File Name: unity_linux_UTSA-2025-992190.nasl

Version: 1.1

Type: local

Published: 12/30/2025

Updated: 12/30/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2023-53276

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: 12/30/2025

Vulnerability Publication Date: 9/4/2021

Reference Information

CVE: CVE-2023-53276