# CVE-2018-7247: leptonica-progs: An issue was discovered in pixHtmlViewer in prog/htmlviewer.c in Leptonica before 1.75.3

CVE-2018-7247 is fixed in 2 products on 1 platform, first by leptonica-progs 1.75.3-3ubuntu0.1~esm1, released February 19, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-7247
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0247
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 19, 2018

## Description

An issue was discovered in pixHtmlViewer in prog/htmlviewer.c in Leptonica before 1.75.3. Unsanitized input (rootname) can overflow a buffer, leading potentially to arbitrary code execution or possibly unspecified other impact.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | leptonica-progs Ubuntu 18.04.6 LTS (bionic) | 1.75.3-3ubuntu0.1~esm1 | [leptonica-progs 1.75.3-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-leptonica-progs-1.75.3-3ubuntu0.1-esm1.md) | Feb 19, 2018 |
| Linux | liblept5 Ubuntu 18.04.6 LTS (bionic) | 1.75.3-3ubuntu0.1~esm1 | [liblept5 1.75.3-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-liblept5-1.75.3-3ubuntu0.1-esm1.md) | Feb 19, 2018 |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo