Detections
Analytics

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986735)

medium Nessus Plugin ID 268156

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-2025-986735 advisory.

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

 media: v4l2-dv-timings.c: fix too strict blanking sanity checks

 Sanity checks were added to verify the v4l2_bt_timings blanking fields in order to avoid integer overflows when userspace passes weird values.

 But that assumed that userspace would correctly fill in the front porch, backporch and sync values, but sometimes all you know is the total blanking, which is then assigned to just one of these fields.

 And that can fail with these checks.

 So instead set a maximum for the total horizontal and vertical blanking and check that each field remains below that.

 That is still sufficient to avoid integer overflows, but it also allows for more flexibility in how userspace fills in these fields.

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.

See Also

http://www.nessus.org/u?14da11f2

http://www.nessus.org/u?b7efae1b

https://nvd.nist.gov/vuln/detail/CVE-2022-48987

Plugin Details

Severity: Medium

ID: 268156

File Name: unity_linux_UTSA-2025-986735.nasl

Version: 1.1

Type: local

Published: 10/7/2025

Updated: 10/7/2025

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-2022-48987

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/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/23/2025

Vulnerability Publication Date: 2/7/2023

Reference Information

CVE: CVE-2022-48987