What’s Vulnerable › Vulnerabilities
CVE-2019-19722
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2019-12-13 · updated 2026-06-17
- Weakness: CWE-476
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.
Affected products
- dovecot: before 2.3.9.2 — fixed in 2.3.9.2
- Fedoraproject Fedora: 30, 31
How to fix
Upgrade to a fixed version: dovecot 2.3.9.2. Check the vendor advisory for mitigations.
References
- http://www.openwall.com/lists/oss-security/2019/12/13/3
- https://dovecot.org/list/dovecot-news/2019-December/000428.html
- https://dovecot.org/pipermail/dovecot-news/2019-December/000428.html
- https://dovecot.org/security.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/
- http://www.openwall.com/lists/oss-security/2019/12/13/3
- https://dovecot.org/list/dovecot-news/2019-December/000428.html
- https://dovecot.org/pipermail/dovecot-news/2019-December/000428.html
- https://dovecot.org/security.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/
Get alerted when CVE-2019-19722 or the next vulnerability affects your stack