Name: CVE-2020-28200: Allocation of Resources Without Limits or Throttling
Creator: Rapid7
Published: 2021-06-28T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2020-28200, CWE-770, CVSS 4.3, EPSS 0.01968

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.

CVSS Details

CVSS 3.1 Base Score: 4.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Jun 28, 2021
Debian	—	Upgrade dovecot	Jul 30, 2024	Jun 28, 2021
Freebsd	—	Upgrade dovecot-pigeonhole	Nov 4, 2022	Jun 22, 2021
Redhat_linux	—	No solution exists	Jul 9, 2025	Jun 28, 2021
Suse	—	Upgrade dovecot23-backend-sqliteUpgrade dovecot23-fts-squatUpgrade dovecot23Upgrade dovecot23-fts-solrUpgrade dovecot23-ftsUpgrade dovecot23-backend-mysqlUpgrade dovecot23-fts-luceneUpgrade dovecot23-backend-pgsqlUpgrade dovecot23-devel	Sep 1, 2021	Jun 28, 2021

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence