# CVE-2020-23109: heif-gdk-pixbuf: Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows att...

CVE-2020-23109 is fixed in 4 products on 1 platform, first by heif-gdk-pixbuf 1.6.1-1ubuntu0.1~esm1, released May 5, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-23109
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0135
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 3, 2021

## Description

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | heif-gdk-pixbuf Ubuntu 20.04 LTS (focal) | 1.6.1-1ubuntu0.1~esm1 | [heif-gdk-pixbuf 1.6.1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-heif-gdk-pixbuf-1.6.1-1ubuntu0.1-esm1.md) | May 5, 2023 |
| Linux | heif-thumbnailer Ubuntu 20.04 LTS (focal) | 1.6.1-1ubuntu0.1~esm1 | [heif-thumbnailer 1.6.1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-heif-thumbnailer-1.6.1-1ubuntu0.1-esm1.md) | May 5, 2023 |
| Linux | libheif-examples Ubuntu 20.04 LTS (focal) | 1.6.1-1ubuntu0.1~esm1 | [libheif-examples 1.6.1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libheif-examples-1.6.1-1ubuntu0.1-esm1.md) | May 5, 2023 |
| Linux | libheif1 Ubuntu 20.04 LTS (focal) | 1.6.1-1ubuntu0.1~esm1 | [libheif1 1.6.1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libheif1-1.6.1-1ubuntu0.1-esm1.md) | May 5, 2023 |

---

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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.