It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade dovecot | Aug 22, 2024 | Mar 27, 2019 |
| Amazon Linux Ami 2 | — | Upgrade dovecot-mysqlUpgrade dovecot-pgsqlUpgrade dovecot-develUpgrade dovecot-pigeonholeUpgrade dovecot-debuginfoUpgrade dovecot | Aug 25, 2020 | Mar 27, 2019 |
| Amazon_linux | — | Upgrade dovecot | May 15, 2020 | Jan 16, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Mar 27, 2019 |
| Centos_linux | — | Upgrade dovecot-pigeonhole-debuginfoUpgrade dovecot-develUpgrade dovecot-debugsourceUpgrade dovecot-mysql-debuginfoUpgrade dovecot-pgsqlUpgrade dovecot-pigeonholeUpgrade dovecot-pgsql-debuginfoUpgrade dovecotUpgrade dovecot-debuginfoUpgrade dovecot-mysql | Nov 6, 2019 | Mar 27, 2019 |
| Debian | — | Upgrade dovecot | Feb 7, 2019 | Jan 16, 2019 |
| Freebsd | — | Upgrade dovecot | Feb 6, 2019 | Feb 5, 2019 |
| Gentoo Linux | — | Upgrade net-mail/dovecot. | Apr 18, 2019 | Mar 27, 2019 |
| Huawei Euleros 2_0_sp2 | — | Upgrade dovecot-pgsqlUpgrade dovecot-mysqlUpgrade dovecotUpgrade dovecot-pigeonhole | May 1, 2019 | Mar 27, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade dovecot-pigeonholeUpgrade dovecot-pgsqlUpgrade dovecotUpgrade dovecot-mysql | May 30, 2019 | Mar 27, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade dovecot-pigeonholeUpgrade dovecot-pgsqlUpgrade dovecotUpgrade dovecot-mysql | May 1, 2019 | Mar 27, 2019 |
| Oracle_linux | — | Upgrade dovecot-mysqlUpgrade dovecotUpgrade dovecot-pgsqlUpgrade dovecot-pigeonholeUpgrade dovecot-devel | Oct 5, 2022 | Feb 5, 2019 |
| Redhat_linux | — | Upgrade dovecot-debuginfoUpgrade dovecot-pigeonhole-debuginfoUpgrade dovecot-mysql-debuginfoNo solution existsUpgrade dovecotUpgrade dovecot-mysqlUpgrade dovecot-develUpgrade dovecot-pgsql-debuginfoUpgrade dovecot-pgsqlUpgrade dovecot-debugsourceUpgrade dovecot-pigeonhole | Nov 6, 2019 | Mar 27, 2019 |
| Suse | — | Upgrade dovecot22-backend-pgsqlUpgrade dovecot22-backend-sqliteUpgrade dovecot23Upgrade dovecot23-fts-solrUpgrade dovecot23-backend-sqliteUpgrade dovecot23-backend-mysqlUpgrade dovecot23-fts-squatUpgrade dovecot22-develUpgrade dovecot23-develUpgrade dovecot22-backend-mysqlUpgrade dovecot23-backend-pgsqlUpgrade dovecot23-fts-luceneUpgrade dovecot23-ftsUpgrade dovecot22 | Feb 27, 2019 | Jan 16, 2019 |
| Ubuntu | — | Upgrade dovecot-core | Feb 13, 2019 | Jan 16, 2019 |
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