Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: libkcapi (UTSA-2026-124529)

medium Nessus Plugin ID 349887

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-2026-124529 advisory.

A flaw was found in libkcapi. A local attacker can influence an application that uses the Asynchronous Input/Output (AIO) interface. By reusing an AIO-enabled handle after a prior completion error, the
_kcapi_aio_read_all() function can enter a non-terminating wait loop. This can lead to a persistent denial of service, making the affected application or thread unresponsive.

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 libkcapi package.

Plugin Details

Severity: Medium

ID: 349887

File Name: unity_linux_UTSA-2026-124529.nasl

Version: 1.1

Type: Local

Family: Unity Linux Local Security Checks

Published: 9/24/2026

Updated: 9/24/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.66

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.1

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

CVSS Score Source: CVE-2026-71227

CVSS v3

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 4.6

Vector: CVSS:3.0/AV:L/AC:H/PR:N/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/cpu, Host/UOS-Server/release, Host/UOS-Server/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/25/2026

Vulnerability Publication Date: 8/5/2026

Reference Information

CVE: CVE-2026-71227

Detections

Analytics