# CVE-2018-11490: libgif7: The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as later shipped in cgif.c in sam2p...

CVE-2018-11490 is fixed in 2 products on 1 platform, first by giflib-tools 5.1.4-2ubuntu0.1, released August 16, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-11490
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0243
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 25, 2018

## Description

The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as later shipped in cgif.c in sam2p 0.49.4, has a heap-based buffer overflow because a certain "Private->RunningCode - 2" array index is not checked. This will lead to a denial of service or possibly unspecified other impact.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | giflib-tools Ubuntu 18.04.6 LTS (bionic) | 5.1.4-2ubuntu0.1 | [giflib-tools 5.1.4-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-giflib-tools-5.1.4-2ubuntu0.1.md) | Aug 16, 2019 |
| Linux | libgif7 Ubuntu 18.04.6 LTS (bionic) | 5.1.4-2ubuntu0.1 | [libgif7 5.1.4-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libgif7-5.1.4-2ubuntu0.1.md) | Aug 16, 2019 |

---

Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo