CVE-2019-3814

Name: CVE-2019-3814
Creator: NVD / NIST
Published: 2019-03-27T13:29:01.337+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.46%

Last modified Jun 17, 2026

CVE-2019-3814 is a vulnerability of currently unknown severity. It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.. EPSS estimates a 2.46% chance of exploitation in the next 30 days.

Description

It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.

Metrics

EPSS Probability

2.46%

82.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dovecot	Dovecot	>= 1.1.0, < 2.2.36.1
Dovecot	Dovecot	>= 2.3.0, < 2.3.4.1
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10
Opensuse	Leap	42.3

References

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.htmlMailing List, Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3467
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3814Issue Tracking, Release Notes, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4XLI55NGRDTGMVOPYFCPPFNPA5VKYSSY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
https://security.gentoo.org/glsa/201904-19
https://www.dovecot.org/list/dovecot/2019-February/114575.htmlExploit, Mailing List, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.htmlMailing List, Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3467
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3814Issue Tracking, Release Notes, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4XLI55NGRDTGMVOPYFCPPFNPA5VKYSSY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
https://security.gentoo.org/glsa/201904-19
https://www.dovecot.org/list/dovecot/2019-February/114575.htmlExploit, Mailing List, Vendor Advisory

Timeline

Published: Mar 27, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-3814?

How severe is CVE-2019-3814?

Severity scoring for CVE-2019-3814 is pending analysis. The EPSS model estimates a 2.46% probability of exploitation in the next 30 days.

How do I fix CVE-2019-3814?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-3814?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST