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Debian LTS Advisory DLA-3122-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                         Anton Gladky
September 27, 2022                            https://wiki.debian.org/LTS
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Package        : dovecot
Version        : 1:2.3.4.1-5+deb10u7
CVE ID         : CVE-2021-33515 CVE-2022-30550

Two security issues were discovered in dovecot: IMAP and POP3 email server.

CVE-2021-33515

    The submission service in Dovecot before 2.3.15 allows STARTTLS command
    injection in lib-smtp. Sensitive information can be redirected to an
    attacker-controlled address.

CVE-2022-30550

    When two passdb configuration entries exist with the same driver and args
    settings, incorrectly applied settings can lead to an unintended security
    configuration and can permit privilege escalation in certain configurations.

For Debian 10 buster, these problems have been fixed in version
1:2.3.4.1-5+deb10u7.

We recommend that you upgrade your dovecot packages.

For the detailed security status of dovecot please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/dovecot

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS