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Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : MuPDF vulnerabilities (USN-7825-1)

medium Nessus Plugin ID 270675

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Synopsis

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

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7825-1 advisory.

 It was discovered that MuPDF incorrectly managed memory, resulting in a memory leak. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS.
 (CVE-2018-1000036)

 It was discovered that MuPDF could enter an infinite loop when parsing certain PDF files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS.
 (CVE-2018-10289)

 It was discovered that MuPDF incorrectly managed memory, possibly leading to a segmentation fault. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-16647, CVE-2018-16648)

 It was discovered that MuPDF contained a use-after-free vulnerability. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
 (CVE-2020-21896)

 It was discovered that MuPDF incorrectly managed memory, resulting in a memory leak. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-26683)

 Maxim Mishechkin, Vitalii Akolzin, Shamil Kurmangaleev, Denis Straghkov, Fedor Nis'kov and Ivan Gulakov discovered that MuPDF incorrectly managed memory under certain circumstances, leading to a double-free. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-3407)

 Xuwei Liu discovered that MuPDF may perform an out-of-bounds write under certain circumstances. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-37220)

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 libmupdf-dev, mupdf and / or mupdf-tools packages.

See Also

https://ubuntu.com/security/notices/USN-7825-1

Plugin Details

Severity: Medium

ID: 270675

File Name: ubuntu_USN-7825-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/16/2025

Updated: 10/16/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2021-37220

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

CVSS Score Source: CVE-2020-26683

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:mupdf-tools, p-cpe:/a:canonical:ubuntu_linux:mupdf, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libmupdf-dev

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/16/2025

Vulnerability Publication Date: 4/22/2018

Reference Information

CVE: CVE-2018-1000036, CVE-2018-10289, CVE-2018-16647, CVE-2018-16648, CVE-2020-21896, CVE-2020-26683, CVE-2021-3407, CVE-2021-37220

USN: 7825-1