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CVE-2020-24386

Published: 4 January 2021

An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authenticated attacker can trigger unhibernation via attacker-controlled parameters, leading to access to other users' email messages (and path disclosure).

Notes

AuthorNote
mdeslaur
per upstream, Vulnerable version: 2.2.26-2.3.11.3

Priority

Medium

Cvss 3 Severity Score

6.8

Score breakdown

Status

Package Release Status
dovecot
Launchpad, Ubuntu, Debian
trusty Not vulnerable
(code not present)
upstream
Released (2.3.13)
xenial Not vulnerable
(code not present)
bionic
Released (1:2.2.33.2-1ubuntu4.7)
focal
Released (1:2.3.7.2-1ubuntu3.3)
groovy
Released (1:2.3.11.3+dfsg1-2ubuntu0.1)

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:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N