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 | arch-linux-upgrade-latest | Jul 11, 2025 | Jun 28, 2021 | |
| Debian | debian-upgrade-dovecot | Jul 30, 2024 | Jun 28, 2021 | |
| Freebsd | freebsd-upgrade-package-dovecot-pigeonhole | Nov 4, 2022 | Jun 22, 2021 | |
| Redhat_linux | — | no-fix-redhat-rpm-package | Jul 9, 2025 | Jun 28, 2021 |
| Suse | — | suse-upgrade-dovecot23suse-upgrade-dovecot23-backend-mysqlsuse-upgrade-dovecot23-backend-pgsqlsuse-upgrade-dovecot23-backend-sqlitesuse-upgrade-dovecot23-develsuse-upgrade-dovecot23-ftssuse-upgrade-dovecot23-fts-lucenesuse-upgrade-dovecot23-fts-solrsuse-upgrade-dovecot23-fts-squat | Sep 1, 2021 | Jun 28, 2021 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub