MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the maximum key size of a hash table. This can, for example, be seen with crafted "mutool draw" input.

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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly     consider the maximum key size of a hash table. This can, for example, be seen with crafted mutool draw     input. (CVE-2021-37220)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote host is affected by the vulnerability described in GLSA-202408-29 (MuPDF: Multiple Vulnerabilities)

    Multiple vulnerabilities have been discovered in MuPDF. Please review the CVE identifiers referenced below     for details.

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

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

ID	Name	Product	Family	Severity
270675	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : MuPDF vulnerabilities (USN-7825-1)	Nessus	Ubuntu Local Security Checks	medium
253619	Linux Distros Unpatched Vulnerability : CVE-2021-37220	Nessus	Misc.	medium
205519	GLSA-202408-29 : MuPDF: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	medium

Detections

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CVE-2021-37220

medium

Tenable Plugins

medium

medium

medium