# CVE-2019-5087: xcftools: An exploitable integer overflow vulnerability exists in the flattenIncrementally function in the xcf2png and xcf2pnm...

CVE-2019-5087 is fixed in xcftools on 1 platform, first by xcftools 1.0.7-6ubuntu0.1, released November 21, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-5087
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0364
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 21, 2019

## Description

An exploitable integer overflow vulnerability exists in the flattenIncrementally function in the xcf2png and xcf2pnm binaries of xcftools 1.0.7. An integer overflow can occur while calculating the row's allocation size, that could be exploited to corrupt memory and eventually execute arbitrary code. In order to trigger this vulnerability, a victim would need to open a specially crafted XCF file.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | xcftools Ubuntu 18.04.6 LTS (bionic) | 1.0.7-6ubuntu0.1 | [xcftools 1.0.7-6ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xcftools-1.0.7-6ubuntu0.1.md) | Nov 21, 2019 |
| Linux | xcftools Ubuntu 20.04 LTS (focal) | 1.0.7-6ubuntu0.20.04.1 | [xcftools 1.0.7-6ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xcftools-1.0.7-6ubuntu0.20.04.1.md) | Nov 21, 2019 |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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