# mupdf-tools 1.12.0+ds1-1ubuntu0.1~esm1: mupdf-tools 1.12.0+ds1-1ubuntu0.1~esm1 for Ubuntu 18.04.6 LTS (bionic)

mupdf-tools 1.12.0+ds1-1ubuntu0.1~esm1, released August 22, 2023, fixes 7 CVEs in mupdf-tools. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-mupdf-tools-1.12.0-ds1-1ubuntu0.1-esm1
- Platform: Linux
- Released: Aug 22, 2023
- Priority: Routine (Closes 7 CVEs, none high severity)
- CVEs: 7, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [mupdf-tools](https://patchblox.com/security/data/product/linux/mupdf-tools.md) | Ubuntu 18.04.6 LTS (bionic) | 1.12.0+ds1-1ubuntu0.1~esm1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-3407](https://patchblox.com/security/data/cve/CVE-2021-3407.md) | Routine | mupdf: A flaw was found in mupdf 1.18.0 | n/a | 0.5023 |  |
| [CVE-2018-16647](https://patchblox.com/security/data/cve/CVE-2018-16647.md) | Routine | mupdf-tools: In Artifex MuPDF 1.13.0, the pdf_get_xref_entry function in pdf/pdf-xref.c allows remote attackers to cause a denial... | n/a | 0.0147 |  |
| [CVE-2018-16648](https://patchblox.com/security/data/cve/CVE-2018-16648.md) | Routine | mupdf: In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows remote attackers to cause a denial of se... | n/a | 0.0147 |  |
| [CVE-2021-37220](https://patchblox.com/security/data/cve/CVE-2021-37220.md) | Routine | mupdf: MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the max... | n/a | 0.0133 |  |
| [CVE-2018-10289](https://patchblox.com/security/data/cve/CVE-2018-10289.md) | Routine | mupdf: In MuPDF 1.13.0, there is an infinite loop in the fz_skip_space function of the pdf/pdf-xref.c file | n/a | 0.0105 |  |
| [CVE-2018-1000036](https://patchblox.com/security/data/cve/CVE-2018-1000036.md) | Routine | mupdf: In Artifex MuPDF 1.12.0 and earlier, multiple memory leaks in the PDF parser allow an attacker to cause a denial of s... | n/a | 0.0097 |  |
| [CVE-2020-21896](https://patchblox.com/security/data/cve/CVE-2020-21896.md) | Routine | mupdf: mupdf - security update | 5.5 | 0.0051 |  |

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Data as of 2026-11-13T08:00:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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