Vulnerabilities (CVE)

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Filtered by vendor Dovecot Subscribe
Filtered by product Dovecot
Total 53 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2019-11499 3 Dovecot, Fedoraproject, Opensuse 3 Dovecot, Fedora, Leap 2023-03-01 5.0 MEDIUM 7.5 HIGH
In the IMAP Server in Dovecot 2.3.3 through 2.3.5.2, the submission-login component crashes if AUTH PLAIN is attempted over a TLS secured channel with an unacceptable authentication message.
CVE-2019-11494 3 Dovecot, Fedoraproject, Opensuse 3 Dovecot, Fedora, Leap 2023-03-01 5.0 MEDIUM 7.5 HIGH
In the IMAP Server in Dovecot 2.3.3 through 2.3.5.2, the submission-login service crashes when the client disconnects prematurely during the AUTH command.
CVE-2020-12674 4 Canonical, Debian, Dovecot and 1 more 4 Ubuntu Linux, Debian Linux, Dovecot and 1 more 2023-02-02 5.0 MEDIUM 7.5 HIGH
In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled.
CVE-2020-12673 4 Canonical, Debian, Dovecot and 1 more 4 Ubuntu Linux, Debian Linux, Dovecot and 1 more 2023-02-02 5.0 MEDIUM 7.5 HIGH
In Dovecot before 2.3.11.3, sending a specially formatted NTLM request will crash the auth service because of an out-of-bounds read.
CVE-2019-19722 2 Dovecot, Fedoraproject 2 Dovecot, Fedora 2023-02-01 5.0 MEDIUM 5.3 MEDIUM
In Dovecot before 2.3.9.2, an attacker can crash a push-notification driver with a crafted email when push notifications are used, because of a NULL Pointer Dereference. The email must use a group address as either the sender or the recipient.
CVE-2022-30550 2 Debian, Dovecot 2 Debian Linux, Dovecot 2022-10-28 N/A 8.8 HIGH
An issue was discovered in the auth component in Dovecot 2.2 and 2.3 before 2.3.20. When two passdb configuration entries exist with the same driver and args settings, incorrect username_filter and mechanism settings can be applied to passdb definitions. These incorrectly applied settings can lead to an unintended security configuration and can permit privilege escalation in certain configurations. The documentation does not advise against the use of passdb definitions that have the same driver and args settings. One such configuration would be where an administrator wishes to use the same PAM configuration or passwd file for both normal and master users but use the username_filter setting to restrict which of the users is able to be a master user.
CVE-2021-33515 3 Debian, Dovecot, Fedoraproject 3 Debian Linux, Dovecot, Fedora 2022-09-28 5.8 MEDIUM 4.8 MEDIUM
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-2020-25275 3 Debian, Dovecot, Fedoraproject 3 Debian Linux, Dovecot, Fedora 2022-09-02 5.0 MEDIUM 7.5 HIGH
Dovecot before 2.3.13 has Improper Input Validation in lda, lmtp, and imap, leading to an application crash via a crafted email message with certain choices for ten thousand MIME parts.
CVE-2020-24386 3 Debian, Dovecot, Fedoraproject 3 Debian Linux, Dovecot, Fedora 2022-09-02 4.9 MEDIUM 6.8 MEDIUM
An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authenticated attacker can trigger unhibernation via attacker-controlled parameters, leading to access to other users' email messages (and path disclosure).
CVE-2020-28200 2 Dovecot, Fedoraproject 2 Dovecot, Fedora 2022-05-03 4.0 MEDIUM 4.3 MEDIUM
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.
CVE-2017-14461 3 Debian, Dovecot, Ubuntu 3 Debian Linux, Dovecot, Ubuntu 2022-04-19 5.5 MEDIUM 7.1 HIGH
A specially crafted email delivered over SMTP and passed on to Dovecot by MTA can trigger an out of bounds read resulting in potential sensitive information disclosure and denial of service. In order to trigger this vulnerability, an attacker needs to send a specially crafted email message to the server.
CVE-2008-4870 2 Dovecot, Redhat 2 Dovecot, Enterprise Linux 2022-02-03 2.1 LOW N/A
dovecot 1.0.7 in Red Hat Enterprise Linux (RHEL) 5, and possibly Fedora, uses world-readable permissions for dovecot.conf, which allows local users to obtain the ssl_key_password parameter value.
CVE-2020-7957 2 Dovecot, Fedoraproject 2 Dovecot, Fedora 2022-01-01 5.0 MEDIUM 5.3 MEDIUM
The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.
CVE-2020-7046 2 Dovecot, Fedoraproject 2 Dovecot, Fedora 2021-12-30 7.8 HIGH 7.5 HIGH
lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the unauthenticated triggering of a submission-login infinite loop.
CVE-2021-29157 2 Dovecot, Fedoraproject 2 Dovecot, Fedora 2021-09-20 2.1 LOW 5.5 MEDIUM
Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.
CVE-2020-12100 2 Debian, Dovecot 2 Debian Linux, Dovecot 2021-01-06 5.0 MEDIUM 7.5 HIGH
In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts.
CVE-2020-10967 1 Dovecot 1 Dovecot 2020-10-13 5.0 MEDIUM 5.3 MEDIUM
In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
CVE-2019-10691 2 Dovecot, Opensuse 2 Dovecot, Leap 2020-08-24 5.0 MEDIUM 7.5 HIGH
The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username.
CVE-2020-10958 1 Dovecot 1 Dovecot 2020-05-27 5.0 MEDIUM 5.3 MEDIUM
In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.
CVE-2020-10957 1 Dovecot 1 Dovecot 2020-05-27 5.0 MEDIUM 7.5 HIGH
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.