Filtered by vendor Dovecot Subscriptions
Total 53 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2022-30550 3 Debian, Dovecot, Redhat 3 Debian Linux, Dovecot, Enterprise Linux 2025-05-23 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-2016-8652 1 Dovecot 1 Dovecot 2025-04-20 N/A
The auth component in Dovecot before 2.2.27, when auth-policy is configured, allows a remote attackers to cause a denial of service (crash) by aborting authentication without setting a username.
CVE-2015-3420 2 Dovecot, Fedoraproject 2 Dovecot, Fedora 2025-04-20 N/A
The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.
CVE-2014-3430 2 Dovecot, Redhat 2 Dovecot, Enterprise Linux 2025-04-12 N/A
Dovecot 1.1 before 2.2.13 and dovecot-ee before 2.1.7.7 and 2.2.x before 2.2.12.12 does not properly close old connections, which allows remote attackers to cause a denial of service (resource consumption) via an incomplete SSL/TLS handshake for an IMAP/POP3 connection.
CVE-2013-2111 1 Dovecot 1 Dovecot 2025-04-12 N/A
The IMAP functionality in Dovecot before 2.2.2 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via invalid APPEND parameters.
CVE-2010-0745 1 Dovecot 1 Dovecot 2025-04-11 N/A
Unspecified vulnerability in Dovecot 1.2.x before 1.2.11 allows remote attackers to cause a denial of service (CPU consumption) via long headers in an e-mail message.
CVE-2011-4318 2 Dovecot, Redhat 2 Dovecot, Enterprise Linux 2025-04-11 N/A
Dovecot 2.0.x before 2.0.16, when ssl or starttls is enabled and hostname is used to define the proxy destination, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate for a different hostname.
CVE-2011-1929 2 Dovecot, Redhat 2 Dovecot, Enterprise Linux 2025-04-11 N/A
lib-mail/message-header-parser.c in Dovecot 1.2.x before 1.2.17 and 2.0.x before 2.0.13 does not properly handle '\0' characters in header names, which allows remote attackers to cause a denial of service (daemon crash or mailbox corruption) via a crafted e-mail message.
CVE-2011-2166 2 Dovecot, Redhat 2 Dovecot, Enterprise Linux 2025-04-11 N/A
script-login in Dovecot 2.0.x before 2.0.13 does not follow the user and group configuration settings, which might allow remote authenticated users to bypass intended access restrictions by leveraging a script.
CVE-2010-3707 2 Dovecot, Redhat 2 Dovecot, Enterprise Linux 2025-04-11 N/A
plugins/acl/acl-backend-vfile.c in Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.5 interprets an ACL entry as a directive to add to the permissions granted by another ACL entry, instead of a directive to replace the permissions granted by another ACL entry, in certain circumstances involving more specific entries that occur after less specific entries, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox.
CVE-2010-3304 1 Dovecot 1 Dovecot 2025-04-11 N/A
The ACL plugin in Dovecot 1.2.x before 1.2.13 propagates INBOX ACLs to newly created mailboxes in certain configurations, which might allow remote attackers to read mailboxes that have unintended weak ACLs.
CVE-2010-3706 1 Dovecot 1 Dovecot 2025-04-11 N/A
plugins/acl/acl-backend-vfile.c in Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.5 interprets an ACL entry as a directive to add to the permissions granted by another ACL entry, instead of a directive to replace the permissions granted by another ACL entry, in certain circumstances involving the private namespace of a user, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox.
CVE-2011-2167 2 Dovecot, Redhat 2 Dovecot, Enterprise Linux 2025-04-11 N/A
script-login in Dovecot 2.0.x before 2.0.13 does not follow the chroot configuration setting, which might allow remote authenticated users to conduct directory traversal attacks by leveraging a script.
CVE-2010-3780 2 Dovecot, Redhat 2 Dovecot, Enterprise Linux 2025-04-11 N/A
Dovecot 1.2.x before 1.2.15 allows remote authenticated users to cause a denial of service (master process outage) by simultaneously disconnecting many (1) IMAP or (2) POP3 sessions.
CVE-2010-3779 1 Dovecot 1 Dovecot 2025-04-11 N/A
Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.beta2 grants the admin permission to the owner of each mailbox in a non-public namespace, which might allow remote authenticated users to bypass intended access restrictions by changing the ACL of a mailbox, as demonstrated by a symlinked shared mailbox.
CVE-2013-6171 1 Dovecot 1 Dovecot 2025-04-11 N/A
checkpassword-reply in Dovecot before 2.2.7 performs setuid operations to a user who is authenticating, which allows local users to bypass authentication and access virtual email accounts by attaching to the process and using a restricted file descriptor to modify account information in the response to the dovecot-auth server.
CVE-2008-4577 5 Canonical, Dovecot, Fedoraproject and 2 more 5 Ubuntu Linux, Dovecot, Fedora and 2 more 2025-04-09 7.5 High
The ACL plugin in Dovecot before 1.1.4 treats negative access rights as if they are positive access rights, which allows attackers to bypass intended access restrictions.
CVE-2007-4211 2 Dovecot, Redhat 2 Dovecot, Enterprise Linux 2025-04-09 N/A
The ACL plugin in Dovecot before 1.0.3 allows remote authenticated users with the insert right to save certain flags via a (1) COPY or (2) APPEND command.
CVE-2008-4907 1 Dovecot 1 Dovecot 2025-04-09 N/A
The message parsing feature in Dovecot 1.1.4 and 1.1.5, when using the FETCH ENVELOPE command in the IMAP client, allows remote attackers to cause a denial of service (persistent crash) via an email with a malformed From address, which triggers an assertion error, aka "invalid message address parsing bug."
CVE-2009-3235 2 Dovecot, Redhat 2 Dovecot, Enterprise Linux 2025-04-09 N/A
Multiple stack-based buffer overflows in the Sieve plugin in Dovecot 1.0 before 1.0.4 and 1.1 before 1.1.7, as derived from Cyrus libsieve, allow context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted SIEVE script, as demonstrated by forwarding an e-mail message to a large number of recipients, a different vulnerability than CVE-2009-2632.