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CVE

CVE-2019-3814

It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote at

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.

HIGH · CVSS 7.7 EPSS 0.01572
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
CWE-295Improper Certificate Validation
▤

Affected Products & Versions

4
dovecot>= 1.1.0 and < 2.2.36.1
dovecot>= 2.3.0 and < 2.3.4.1
canonical ubuntu linuxall versions
opensuse leapall versions
⚠

Public Exploits & PoCs

1
pocwww.dovecot.org · 114575.htmlwww.dovecot.org
▣

Scoring & Timeline

7.7
HIGH · CVSS v3.0 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Mar 2019 · 01:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
⚑

Vendor Advisories

9
suse-csafopenSUSE-SU-2025:14715-1
suse-csafopenSUSE-SU-2024:10726-1
suse-csafSUSE-SU-2019:0900-1
rhsaRHSA-2020:1062Moderate
suse-csafopenSUSE-SU-2019:0243-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.htmlMailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3814Issue TrackingRelease NotesThird 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
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