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CentOS Linux 8.5 [TuxCare] Security Update: ImageMagick / ImageMagick-c++ / ImageMagick-c++-devel / etc Multiple Vulnerabilities (CENTOS8.5:CLSA-2026:1775683193)

critical Nessus Plugin ID 360315

Synopsis

The CentOS Linux host is missing one or more security updates.

Description

The CentOS Linux 8.5 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2026:1775683193 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.
 (CVE-2025-57807)

 - ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue. (CVE-2026-23876)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages based on the guidance in TuxCare advisory CENTOS8.5:CLSA-2026:1775683193.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1775683193

http://www.nessus.org/u?3de790bf

Plugin Details

Severity: Critical

ID: 360315

File Name: tuxcare_centos_8.5_CLSA-2026-1775683193.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.88

Vendor

Vendor Severity: Critical

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-2026-23876

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/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/8/2026

Vulnerability Publication Date: 8/28/2025

Reference Information

CVE: CVE-2025-57807, CVE-2026-23876

CLSA: 2026:1775683193