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dovecot dovecot vulnerabilities and exploits
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6.8
CVSSv3
CVE-2019-3814
It exists that Dovecot prior to 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.
Dovecot Dovecot
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 14.04
Canonical Ubuntu Linux 12.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 18.10
Opensuse Leap 42.3
6.3
CVSSv3
CVE-2017-18389
cPanel prior to 68.0.15 allows string format injection in dovecot-xaps-plugin (SEC-318).
Cpanel Cpanel
5.9
CVSSv3
CVE-2017-15130
A denial of service flaw was found in dovecot prior to 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.
Dovecot Dovecot
Debian Debian Linux 8.0
Debian Debian Linux 9.0
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 14.04
Canonical Ubuntu Linux 17.10
5.9
CVSSv3
CVE-2015-3420
The ssl-proxy-openssl.c function in Dovecot prior to 2.2.17, when SSLv3 is disabled, allow remote malicious users to cause a denial of service (login process crash) via vectors related to handshake failures.
Dovecot Dovecot
Fedoraproject Fedora 22
Fedoraproject Fedora 20
Fedoraproject Fedora 21
5.5
CVSSv3
CVE-2021-29157
Dovecot prior to 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.
Dovecot Dovecot
Fedoraproject Fedora 33
Fedoraproject Fedora 34
5.5
CVSSv3
CVE-2009-3897
Dovecot 1.2.x prior to 1.2.8 sets 0777 permissions during creation of certain directories at installation time, which allows local users to access arbitrary user accounts by replacing the auth socket, related to the parent directories of the base_dir directory, and possibly the b...
Dovecot Dovecot
5.3
CVSSv3
CVE-2020-10967
In Dovecot prior to 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
Dovecot Dovecot
5.3
CVSSv3
CVE-2020-10958
In Dovecot prior to 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.
Dovecot Dovecot
5.3
CVSSv3
CVE-2020-7957
The IMAP and LMTP components in Dovecot 2.3.9 prior to 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.
Dovecot Dovecot
Fedoraproject Fedora 30
Fedoraproject Fedora 31
5.3
CVSSv3
CVE-2019-19722
In Dovecot prior to 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.
Dovecot Dovecot
Fedoraproject Fedora 30
Fedoraproject Fedora 31
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-37316
firmware
CVE-2024-30078
CVE-2024-5995
remote code execution
logic flaw
CVE-2024-20693
CVE-2024-37315
CVE-2024-5464
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