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Dovecot » Dovecot » * * * * : Security Vulnerabilities

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2021-33515 77 2021-06-28 2021-09-20
5.8
None Remote Medium Not required Partial Partial None
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.
2 CVE-2021-29157 22 Dir. Trav. 2021-06-28 2021-09-20
2.1
None Local Low Not required Partial None None
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.
3 CVE-2020-28200 697 2021-06-28 2021-09-20
4.0
None Remote Low ??? None None Partial
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.
4 CVE-2020-25275 20 2021-01-04 2021-01-20
5.0
None Remote Low Not required None None Partial
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.
5 CVE-2020-24386 2021-01-04 2021-01-20
4.9
None Remote Medium ??? Partial Partial None
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).
6 CVE-2020-12674 125 2020-08-12 2020-10-13
5.0
None Remote Low Not required None None Partial
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.
7 CVE-2020-12673 125 2020-08-12 2020-10-13
5.0
None Remote Low Not required None None Partial
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.
8 CVE-2020-12100 674 DoS 2020-08-12 2021-01-06
5.0
None Remote Low Not required None None Partial
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.
9 CVE-2020-10967 20 2020-05-18 2020-10-13
5.0
None Remote Low Not required None None Partial
In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
10 CVE-2020-10958 416 2020-05-18 2020-05-28
5.0
None Remote Low Not required None None Partial
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.
11 CVE-2020-10957 476 2020-05-18 2020-05-28
5.0
None Remote Low Not required None None Partial
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.
12 CVE-2020-7957 20 DoS 2020-02-12 2020-02-20
5.0
None Remote Low Not required None None Partial
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.
13 CVE-2020-7046 835 2020-02-12 2020-02-20
7.8
None Remote Low Not required None None Complete
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.
14 CVE-2019-19722 476 2019-12-13 2020-01-08
5.0
None Remote Low Not required None None Partial
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.
15 CVE-2019-11500 787 Exec Code 2019-08-29 2019-09-06
7.5
None Remote Low Not required Partial Partial Partial
In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings. This occurs because '\0' characters are mishandled, and can lead to out-of-bounds writes and remote code execution.
16 CVE-2019-11499 2019-05-08 2020-08-24
5.0
None Remote Low Not required None None Partial
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.
17 CVE-2019-11494 2019-05-08 2020-08-24
5.0
None Remote Low Not required None None Partial
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.
18 CVE-2019-10691 2019-04-24 2020-08-24
5.0
None Remote Low Not required None None Partial
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.
19 CVE-2019-7524 119 Overflow 2019-03-28 2019-06-14
7.2
None Local Low Not required Complete Complete Complete
In Dovecot before 2.2.36.3 and 2.3.x before 2.3.5.1, a local attacker can cause a buffer overflow in the indexer-worker process, which can be used to elevate to root. This occurs because of missing checks in the fts and pop3-uidl components.
20 CVE-2019-3814 295 2019-03-27 2019-06-14
4.9
None Remote Medium ??? Partial Partial None
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.
21 CVE-2017-15132 772 2018-01-25 2019-10-09
5.0
None Remote Low Not required None None Partial
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.
22 CVE-2017-15130 DoS 2018-03-02 2019-10-03
4.3
None Remote Medium Not required None None Partial
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.
23 CVE-2017-2669 20 DoS 2018-06-21 2019-10-09
5.0
None Remote Low Not required None None Partial
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.
24 CVE-2016-8652 20 DoS 2017-02-17 2017-02-22
4.3
None Remote Medium Not required None None Partial
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.
25 CVE-2015-3420 295 DoS 2017-09-19 2017-10-05
4.3
None Remote Medium Not required None None Partial
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.
26 CVE-2013-6171 287 Bypass 2013-12-09 2018-03-16
5.8
None Remote Medium Not required Partial Partial None
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.
27 CVE-2013-2111 20 DoS 2014-05-27 2014-05-28
5.0
None Remote Low Not required None None Partial
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.
28 CVE-2008-4578 264 Bypass 2008-10-15 2018-10-11
5.0
None Remote Low Not required None Partial None
The ACL plugin in Dovecot before 1.1.4 allows attackers to bypass intended access restrictions by using the "k" right to create unauthorized "parent/child/child" mailboxes.
29 CVE-2008-4577 264 Bypass 2008-10-15 2017-09-29
6.4
None Remote Low Not required Partial Partial None
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.
30 CVE-2008-1218 255 Bypass 2008-03-10 2018-10-11
6.8
None Remote Medium Not required Partial Partial Partial
Argument injection vulnerability in Dovecot 1.0.x before 1.0.13, and 1.1.x before 1.1.rc3, when using blocking passdbs, allows remote attackers to bypass the password check via a password containing TAB characters, which are treated as argument delimiters that enable the skip_password_check field to be specified.
31 CVE-2007-6598 264 2008-01-04 2018-10-15
6.8
None Remote Medium Not required Partial Partial Partial
Dovecot before 1.0.10, with certain configuration options including use of %variables, does not properly maintain the LDAP+auth cache, which might allow remote authenticated users to login as a different user who has the same password.
32 CVE-2007-4211 2007-08-08 2017-09-29
6.0
None Remote Medium ??? Partial Partial Partial
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.
Total number of vulnerabilities : 32   Page : 1 (This Page)
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