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CVE-2019-3814

Published: 5 February 2019

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.

Priority

Medium

Cvss 3 Severity Score

6.8

Score breakdown

Status

Package Release Status
dovecot
Launchpad, Ubuntu, Debian
upstream
Released (2.2.36.1,2.3.4.1)
trusty
Released (1:2.2.9-1ubuntu2.5)
xenial
Released (1:2.2.22-1ubuntu2.9)
bionic
Released (1:2.2.33.2-1ubuntu4.2)
cosmic
Released (1:2.3.2.1-1ubuntu3.1)

Severity score breakdown

Parameter Value
Base score 6.8
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N