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CVE-2020-25275

Published: 4 January 2021

Dovecot before 2.3.13 has Improper Input Validation in lda, lmtp, and imap, leading to an application crash via a crafted email message with certain choices for ten thousand MIME parts.

Notes

AuthorNote
mdeslaur
per upstream, Vulnerable version: 2.3.11-2.3.11.3
we backported fix to earlier releases, so they are vulnerable

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
dovecot
Launchpad, Ubuntu, Debian
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)
trusty
Released (1:2.2.9-1ubuntu2.6+esm4)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (2.3.13)
xenial
Released (1:2.2.22-1ubuntu2.14)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H