# CVE-2019-6977: gd: GD is an open source code library for the dynamic creation of images by programmers

CVE-2019-6977 is fixed in 4 products on 1 platform, first by libgd-tools 2.2.5-4ubuntu0.3, released January 27, 2019. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2019-6977
- Priority: High
- CVSS: 8.8 (Moderate)
- EPSS: 0.7150
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 25, 2019

## Description

GD is an open source code library for the dynamic creation of images by programmers. GD creates PNG, JPEG, GIF, WebP, XPM, BMP images, among other formats.   Security Fix(es):  * gd: Heap-based buffer overflow in gdImageColorMatch() in gd_color_match.c (CVE-2019-6977)  * gd: NULL pointer dereference in gdImageClone (CVE-2018-14553)  * gd: Double free in the gdImage*Ptr in gd_gif_out.c, gd_jpeg.c, and gd_wbmp.c (CVE-2019-6978)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Additional Changes:  For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gd RHEL 8 | 0:2.2.5-7.el8 | [RHSA-2020:4659](https://patchblox.com/security/data/fix/linux/rhsa-2020-4659.md) | Nov 4, 2020 |
| Linux | gd ol 8 | 0:2.2.5-7.el8 | [ELSA-2020-4659](https://patchblox.com/security/data/fix/linux/elsa-2020-4659.md) | Nov 10, 2020 |
| Linux | gd-devel RHEL 8 | 0:2.2.5-7.el8 | [RHSA-2020:4659](https://patchblox.com/security/data/fix/linux/rhsa-2020-4659.md) | Nov 4, 2020 |
| Linux | gd-devel ol 8 | 0:2.2.5-7.el8 | [ELSA-2020-4659](https://patchblox.com/security/data/fix/linux/elsa-2020-4659.md) | Nov 10, 2020 |
| Linux | libgd-tools Ubuntu 18.04.6 LTS (bionic) | 2.2.5-4ubuntu0.3 | [libgd-tools 2.2.5-4ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libgd-tools-2.2.5-4ubuntu0.3.md) | Jan 27, 2019 |
| Linux | libgd3 Ubuntu 18.04.6 LTS (bionic) | 2.2.5-4ubuntu0.3 | [libgd3 2.2.5-4ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libgd3-2.2.5-4ubuntu0.3.md) | Jan 27, 2019 |

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