Dovecot: >> Dovecot >> 2.2.33.1 Security Vulnerabilities
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.
CVSS Score
5.3
EPSS Score
0.012
Published
2019-12-13
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.
CVSS Score
9.8
EPSS Score
0.486
Published
2019-08-29
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.
CVSS Score
7.5
EPSS Score
0.008
Published
2019-04-24
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.
CVSS Score
8.8
EPSS Score
0.0
Published
2019-03-28
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.
CVSS Score
7.7
EPSS Score
0.005
Published
2019-03-27
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.
CVSS Score
5.9
EPSS Score
0.014
Published
2018-03-02
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