# CVE-2018-17101: libtiff5: An issue was discovered in LibTIFF 4.0.9

CVE-2018-17101 is fixed in 4 products on 1 platform, first by libtiff-opengl 4.0.9-5ubuntu0.1, released October 25, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-17101
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0314
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 15, 2018

## Description

An issue was discovered in LibTIFF 4.0.9. There are two out-of-bounds writes in cpTags in tools/tiff2bw.c and tools/pal2rgb.c, which can cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image file.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libtiff-opengl Ubuntu 18.04.6 LTS (bionic) | 4.0.9-5ubuntu0.1 | [libtiff-opengl 4.0.9-5ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libtiff-opengl-4.0.9-5ubuntu0.1.md) | Oct 25, 2018 |
| Linux | libtiff-tools Ubuntu 18.04.6 LTS (bionic) | 4.0.9-5ubuntu0.1 | [libtiff-tools 4.0.9-5ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libtiff-tools-4.0.9-5ubuntu0.1.md) | Oct 25, 2018 |
| Linux | libtiff5 Ubuntu 18.04.6 LTS (bionic) | 4.0.9-5ubuntu0.1 | [libtiff5 4.0.9-5ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libtiff5-4.0.9-5ubuntu0.1.md) | Oct 25, 2018 |
| Linux | libtiffxx5 Ubuntu 18.04.6 LTS (bionic) | 4.0.9-5ubuntu0.1 | [libtiffxx5 4.0.9-5ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libtiffxx5-4.0.9-5ubuntu0.1.md) | Oct 25, 2018 |

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