Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: ImageMagick (UTSA-2026-015450)

critical Nessus Plugin ID 310984

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-2026-015450 advisory.

ImageMagick is free and open-source software used for editing and manipulating digital images. ImageMagick versions lower than 14.8.2 include insecure functions: SeekBlob(), which permits advancing the stream offset beyond the current end without increasing capacity, and WriteBlob(), which then expands by quantum + length (amortized) instead of offset + length, and copies to data + offset. When offset extent, the copy targets memory beyond the allocation, producing a deterministic heap write on 64-bit builds. No 2 arithmetic wrap, external delegates, or policy settings are required. This is fixed in version 14.8.2.

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 ImageMagick package.

Plugin Details

Severity: Critical

ID: 310984

File Name: unity_linux_UTSA-2026-015450.nasl

Version: 1.1

Type: Local

Family: Unity Linux Local Security Checks

Published: 4/29/2026

Updated: 4/29/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2025-57807

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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: 4/29/2026

Vulnerability Publication Date: 8/28/2025

Reference Information

CVE: CVE-2025-57807

Detections

Analytics