# CVE-2017-6363: libgd3: In the GD Graphics Library (aka LibGD) through 2.2.5, there is a heap-based buffer over-read in tiffWriter in gd_tiff.c

CVE-2017-6363 is fixed in 2 products on 1 platform, first by libgd-tools 2.2.5-4ubuntu0.5, released August 25, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2017-6363
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0140
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2020

## Description

In the GD Graphics Library (aka LibGD) through 2.2.5, there is a heap-based buffer over-read in tiffWriter in gd_tiff.c. NOTE: the vendor says "In my opinion this issue should not have a CVE, since the GD and GD2 formats are documented to be 'obsolete, and should only be used for development and testing purposes.'

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libgd-tools Ubuntu 18.04.6 LTS (bionic) | 2.2.5-4ubuntu0.5 | [libgd-tools 2.2.5-4ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libgd-tools-2.2.5-4ubuntu0.5.md) | Aug 25, 2021 |
| Linux | libgd-tools Ubuntu 20.04 LTS (focal) | 2.2.5-5.2ubuntu2.1 | [libgd-tools 2.2.5-5.2ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libgd-tools-2.2.5-5.2ubuntu2.1.md) | Aug 25, 2021 |
| Linux | libgd3 Ubuntu 18.04.6 LTS (bionic) | 2.2.5-4ubuntu0.5 | [libgd3 2.2.5-4ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libgd3-2.2.5-4ubuntu0.5.md) | Aug 25, 2021 |
| Linux | libgd3 Ubuntu 20.04 LTS (focal) | 2.2.5-5.2ubuntu2.1 | [libgd3 2.2.5-5.2ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libgd3-2.2.5-5.2ubuntu2.1.md) | Aug 25, 2021 |

---

Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo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.