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Ubuntu 20.04 LTS: MuPDF Critical Memory Issues Denial of Service USN-7825-1

ubuntu
Calendar Grey October 17, 2025
Dist Ubuntu Esm H88
Multiple security issues in MuPDF could lead to denial of service on Ubuntu through memory mismanagement. Learn more.
Several security issues were fixed in MuPDF.

Summary

Several security issues were fixed in MuPDF.

Software Description:

- mupdf: A lightweight open source software framework for viewing and converting PDF, XPS, and E-book documents

Details:

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 t...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu memory management mupdf

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS
  libmupdf-dev                    1.16.1+ds1-1ubuntu1+esm1
                                  Available with Ubuntu Pro
  mupdf                           1.16.1+ds1-1ubuntu1+esm1
                                  Available with Ubuntu Pro
  mupdf-tools                     1.16.1+ds1-1ubuntu1+esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  libmupdf-dev                    1.12.0+ds1-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro
  mupdf                           1.12.0+ds1-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro
  mupdf-tools                     1.12.0+ds1-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  libmupdf-dev                    1.7a-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro
  mupdf                           1.7a-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro
  mupdf-tools                     1.7a-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

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

CVE-2018-1000036, CVE-2018-10289, CVE-2018-16647, CVE-2018-16648,

CVE-2020-21896, CVE-2020-26683, CVE-2021-3407, CVE-2021-37220

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7825-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu memory management mupdf

Package Information

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