# CVE-2021-3630: djvulibre-desktop: An out-of-bounds write vulnerability was found in DjVuLibre in DJVU::DjVuTXT::decode() in DjVuText.cpp via a crafted...

CVE-2021-3630 is fixed in 7 products on 1 platform, first by djview 3.5.27.1-8ubuntu0.4, released June 30, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-3630
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0101
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 30, 2021

## Description

An out-of-bounds write vulnerability was found in DjVuLibre in DJVU::DjVuTXT::decode() in DjVuText.cpp via a crafted djvu file which may lead to crash and segmentation fault. This flaw affects DjVuLibre versions prior to 3.5.28.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | djview Ubuntu 18.04.6 LTS (bionic) | 3.5.27.1-8ubuntu0.4 | [djview 3.5.27.1-8ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-djview-3.5.27.1-8ubuntu0.4.md) | Jun 30, 2021 |
| Linux | djview3 Ubuntu 18.04.6 LTS (bionic) | 3.5.27.1-8ubuntu0.4 | [djview3 3.5.27.1-8ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-djview3-3.5.27.1-8ubuntu0.4.md) | Jun 30, 2021 |
| Linux | djvulibre-bin Ubuntu 18.04.6 LTS (bionic) | 3.5.27.1-8ubuntu0.4 | [djvulibre-bin 3.5.27.1-8ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-djvulibre-bin-3.5.27.1-8ubuntu0.4.md) | Jun 30, 2021 |
| Linux | djvulibre-desktop Ubuntu 18.04.6 LTS (bionic) | 3.5.27.1-8ubuntu0.4 | [djvulibre-desktop 3.5.27.1-8ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-djvulibre-desktop-3.5.27.1-8ubuntu0.4.md) | Jun 30, 2021 |
| Linux | djvuserve Ubuntu 18.04.6 LTS (bionic) | 3.5.27.1-8ubuntu0.4 | [djvuserve 3.5.27.1-8ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-djvuserve-3.5.27.1-8ubuntu0.4.md) | Jun 30, 2021 |
| Linux | libdjvulibre-text Ubuntu 18.04.6 LTS (bionic) | 3.5.27.1-8ubuntu0.4 | [libdjvulibre-text 3.5.27.1-8ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libdjvulibre-text-3.5.27.1-8ubuntu0.4.md) | Jun 30, 2021 |
| Linux | libdjvulibre21 Ubuntu 18.04.6 LTS (bionic) | 3.5.27.1-8ubuntu0.4 | [libdjvulibre21 3.5.27.1-8ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libdjvulibre21-3.5.27.1-8ubuntu0.4.md) | Jun 30, 2021 |

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Data as of 2026-11-08T06:59:42Z 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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