Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2020-28200

Published: 21 June 2021

The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension.

Notes

AuthorNote
mdeslaur
per upstream, fixing this is a massive change that cannot be
backported to earlier releases

Priority

Low

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package Release Status
dovecot
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
trusty Needs triage

upstream
Released (2.3.15)
xenial Needs triage

jammy Not vulnerable
(1:2.3.16+dfsg1-3ubuntu2)
impish Ignored
(end of life)
bionic Needed

focal Needed

kinetic Not vulnerable
(1:2.3.16+dfsg1-3ubuntu3)
lunar Not vulnerable
(1:2.3.16+dfsg1-3ubuntu3)
mantic Not vulnerable
(1:2.3.16+dfsg1-3ubuntu3)

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L