National Vulnerability Database

National Vulnerability Database

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  • Keyword (text search): Dovecot
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  • Contains Software Flaws (CVE)
There are 39 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2017-2669

Dovecot before version 2.2.29 is vulnerable to a denial of service. When 'dict' passdb and userdb were used for user authentication, the username sent by the IMAP/POP3 client was sent through var_expand() to perform %variable expansion. Sending specially crafted %variable fields could result in excessive memory usage causing the process to crash (and restart), or excessive CPU usage causing all authentications to hang.

Published: June 21, 2018; 09:29:00 AM -04:00
V3: 7.5 HIGH
V2: 5.0 MEDIUM
CVE-2017-15130

A denial of service flaw was found in dovecot before 2.2.34. An attacker able to generate random SNI server names could exploit TLS SNI configuration lookups, leading to excessive memory usage and the process to restart.

Published: March 02, 2018; 10:29:00 AM -05:00
V3: 5.9 MEDIUM
V2: 4.3 MEDIUM
CVE-2017-14461

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.

Published: March 02, 2018; 10:29:00 AM -05:00
V3: 7.1 HIGH
V2: 5.5 MEDIUM
CVE-2017-15132

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.

Published: January 25, 2018; 03:29:00 PM -05:00
V3: 7.5 HIGH
V2: 5.0 MEDIUM
CVE-2015-3420

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.

Published: September 19, 2017; 11:29:00 AM -04:00
V3: 5.9 MEDIUM
V2: 4.3 MEDIUM
CVE-2016-8652

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.

Published: February 16, 2017; 09:59:13 PM -05:00
V3: 5.9 MEDIUM
V2: 4.3 MEDIUM
CVE-2013-2111

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.

Published: May 27, 2014; 10:55:06 AM -04:00
V2: 5.0 MEDIUM
CVE-2014-3430

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.

Published: May 14, 2014; 03:55:13 PM -04:00
V2: 5.0 MEDIUM
CVE-2013-6171

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.

Published: December 09, 2013; 11:36:47 AM -05:00
V2: 5.8 MEDIUM
CVE-2011-4318

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.

Published: March 06, 2013; 08:55:01 PM -05:00
V2: 5.8 MEDIUM
CVE-2011-2167

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.

Published: May 24, 2011; 07:55:04 PM -04:00
V2: 6.5 MEDIUM
CVE-2011-2166

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.

Published: May 24, 2011; 07:55:04 PM -04:00
V2: 6.5 MEDIUM
CVE-2011-1929

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.

Published: May 24, 2011; 07:55:04 PM -04:00
V2: 5.0 MEDIUM
CVE-2010-4011

Dovecot in Apple Mac OS X 10.6.5 10H574 does not properly manage memory for user names, which allows remote authenticated users to read the private e-mail of other persons in opportunistic circumstances via standard e-mail clients accessing a user's own mailbox, related to a "memory aliasing issue."

Published: November 16, 2010; 08:00:03 PM -05:00
V2: 4.0 MEDIUM
CVE-2010-3780

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.

Published: October 06, 2010; 05:00:01 PM -04:00
V2: 4.0 MEDIUM
CVE-2010-3779

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.

Published: October 06, 2010; 05:00:01 PM -04:00
V2: 3.5 LOW
CVE-2010-3707

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.

Published: October 06, 2010; 01:00:17 PM -04:00
V2: 5.5 MEDIUM
CVE-2010-3706

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.

Published: October 06, 2010; 01:00:17 PM -04:00
V2: 5.5 MEDIUM
CVE-2010-3304

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.

Published: September 24, 2010; 03:00:04 PM -04:00
V2: 6.4 MEDIUM
CVE-2010-0745

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.

Published: May 20, 2010; 01:30:01 PM -04:00
V2: 5.0 MEDIUM