# CVE-2020-36427: gthumb: GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.

CVE-2020-36427 is fixed in 2 products on 1 platform, first by gthumb 3:3.6.1-1ubuntu0.1~esm1, released July 19, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-36427
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0071
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 19, 2021

## Description

GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gthumb Ubuntu 18.04.6 LTS (bionic) | 3:3.6.1-1ubuntu0.1~esm1 | [gthumb 3:3.6.1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gthumb-3-3.6.1-1ubuntu0.1-esm1.md) | Jul 19, 2021 |
| Linux | gthumb Ubuntu 20.04 LTS (focal) | 3:3.8.0-2.1ubuntu0.1 | [gthumb 3:3.8.0-2.1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gthumb-3-3.8.0-2.1ubuntu0.1.md) | Jul 19, 2021 |
| Linux | gthumb-data Ubuntu 18.04.6 LTS (bionic) | 3:3.6.1-1ubuntu0.1~esm1 | [gthumb-data 3:3.6.1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gthumb-data-3-3.6.1-1ubuntu0.1-esm1.md) | Jul 19, 2021 |
| Linux | gthumb-data Ubuntu 20.04 LTS (focal) | 3:3.8.0-2.1ubuntu0.1 | [gthumb-data 3:3.8.0-2.1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gthumb-data-3-3.8.0-2.1ubuntu0.1.md) | Jul 19, 2021 |

---

Data as of 2026-11-08T19:12:23Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.