Detections
Analytics

Ubuntu 20.04 LTS / 26.04 LTS : ImageMagick vulnerabilities (USN-8810-1)

medium Nessus Plugin ID 349783

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 20.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8810-1 advisory.

 It was discovered that ImageMagick did not correctly handle certain memory operations. An attacker could possibly use this issue to cause a denial of service. This issue affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-33535)

 Kamil Frankowicz discovered that ImageMagick did not correctly handle certain memory operations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-33536)

 It was discovered that ImageMagick did not correctly handle certain integer arithmetic. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-34238)

 Jake Lamberson discovered that ImageMagick did not correctly handle certain memory operations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-40310)

 Junmin Zhu discovered that ImageMagick did not correctly handle certain memory operations. An attacker could possibly use this issue to cause a denial of service. This issue affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-40311)

 It was discovered that ImageMagick did not correctly handle opening certain MSL files. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly cause a denial of service. This issue affected Ubuntu 26.04 LTS. (CVE-2026-40312)

 It was discovered that ImageMagick did not correctly handle certain memory operations. An attacker could possibly use this issue to execute arbitrary code. (CVE-2026-56361)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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.

See Also

https://ubuntu.com/security/notices/USN-8810-1

Plugin Details

Severity: Medium

ID: 349783

File Name: ubuntu_USN-8810-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/24/2026

Updated: 9/24/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.7

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

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

CVSS Score Source: CVE-2026-56361

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 4.8

Threat Score: 1.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:imagemagick-6-common, p-cpe:/a:canonical:ubuntu_linux:imagemagick-6.q16, p-cpe:/a:canonical:ubuntu_linux:imagemagick-6.q16hdri, p-cpe:/a:canonical:ubuntu_linux:imagemagick-7-common, p-cpe:/a:canonical:ubuntu_linux:imagemagick-7.q16, p-cpe:/a:canonical:ubuntu_linux:imagemagick-7.q16hdri, p-cpe:/a:canonical:ubuntu_linux:imagemagick-common, p-cpe:/a:canonical:ubuntu_linux:imagemagick, p-cpe:/a:canonical:ubuntu_linux:libimage-magick-perl, p-cpe:/a:canonical:ubuntu_linux:libimage-magick-q16-perl, p-cpe:/a:canonical:ubuntu_linux:libimage-magick-q16hdri-perl, p-cpe:/a:canonical:ubuntu_linux:libmagick%2b%2b-6-headers, p-cpe:/a:canonical:ubuntu_linux:libmagick%2b%2b-6.q16-8, p-cpe:/a:canonical:ubuntu_linux:libmagick%2b%2b-6.q16hdri-8, p-cpe:/a:canonical:ubuntu_linux:libmagick%2b%2b-7-headers, p-cpe:/a:canonical:ubuntu_linux:libmagick%2b%2b-7.q16-5, p-cpe:/a:canonical:ubuntu_linux:libmagick%2b%2b-7.q16hdri-5, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-6-arch-config, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-6-headers, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-6.q16-6-extra, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-6.q16-6, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-6.q16hdri-6-extra, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-6.q16hdri-6, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-7-arch-config, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-7-headers, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-7.q16-10-extra, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-7.q16-10, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-7.q16hdri-10-extra, p-cpe:/a:canonical:ubuntu_linux:libmagickcore-7.q16hdri-10, p-cpe:/a:canonical:ubuntu_linux:libmagickwand-6-headers, p-cpe:/a:canonical:ubuntu_linux:libmagickwand-6.q16-6, p-cpe:/a:canonical:ubuntu_linux:libmagickwand-6.q16hdri-6, p-cpe:/a:canonical:ubuntu_linux:libmagickwand-7-headers, p-cpe:/a:canonical:ubuntu_linux:libmagickwand-7.q16-10, p-cpe:/a:canonical:ubuntu_linux:libmagickwand-7.q16hdri-10, p-cpe:/a:canonical:ubuntu_linux:perlmagick

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-33535, CVE-2026-33536, CVE-2026-34238, CVE-2026-40310, CVE-2026-40311, CVE-2026-40312, CVE-2026-56361

IAVB: 2026-B-0078-S, 2026-B-0093-S

USN: 8810-1