Debian Dovecot vulnerabilities

CVE-2020-25275 [HIGH] CVE-2020-25275: dovecot - Dovecot before 2.3.13 has Improper Input Validation in lda, lmtp, and imap, lead... 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. Scope: local bookworm: resolved (fixed in 1:2.3.13+dfsg1-1) bullseye: resolved (fixed in 1:2.3.13+dfsg1-1) forky: resolved (fixed in 1:2.3.13+dfsg1-1) sid: resolved (fixed in 1:2.3.1

CVE-2020-12100 [HIGH] CVE-2020-12100: dovecot - In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda ... 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. Scope: local bookworm: resolved (fixed in 1:2.3.11.3+dfsg1-1) bullseye: resolved (fixed in 1:2.3.11.3+dfsg1-1) forky: resolved (fixed in 1:2.3.11.3+dfsg

CVE-2020-10958 [MEDIUM] CVE-2020-10958: dovecot - In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthentica... 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. Scope: local bookworm: resolved (fixed in 1:2.3.10.1+dfsg1-1) bullseye: resolved (fixed in 1:2.3.10.1+dfsg1-1) forky: resolved (fixed in

CVE-2020-28200 [MEDIUM] CVE-2020-28200: dovecot - The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumpti... 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. Scope: local bookworm: resolved (fixed in 1:2.3.16+dfsg1-1) bullseye: open forky: resolved (fixed in 1:2.3.16+dfsg1-1) sid: resolved (fixed in 1:2.3.16+dfsg1-1) trixie: resolved (fixed in 1:2.

CVE-2020-10967 [MEDIUM] CVE-2020-10967: dovecot - In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp ... In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart. Scope: local bookworm: resolved (fixed in 1:2.3.10.1+dfsg1-1) bullseye: resolved (fixed in 1:2.3.10.1+dfsg1-1) forky: resolved (fixed in 1:2.3.10.1+dfsg1-1) sid: resolved (fixed in 1:2.3.10.1+dfsg1-1) trixie: resolved (fixe

CVE-2020-24386 [MEDIUM] CVE-2020-24386: dovecot - An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authent... 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). Scope: local bookworm: resolved (fixed in 1:2.3.13+dfsg1-1) bullseye: resolved (fixed in 1:2.3.13+dfsg1-1) forky: resolved (fixed in 1:2

CVE-2020-7046 [HIGH] CVE-2020-7046: dovecot - lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles... 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. Scope: local bookworm: resolved bullseye: resolved forky: resolved sid: resolved trixie: resolved

CVE-2020-7957 [MEDIUM] CVE-2020-7957: dovecot - The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet g... 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. Scope: local bookworm: resolved bullseye: resolved forky: resolved sid: resolved trixie: resolve

CVE-2019-11500 [CRITICAL] CVE-2019-11500: dovecot - In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7... 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. Scope: local bookworm: resolved (fixed in 1:2.3.7.2-1) bullseye: resolved (fixed in 1:2.3.7.2-1) forky: resolved (

CVE-2019-11499 [HIGH] CVE-2019-11499: dovecot - In the IMAP Server in Dovecot 2.3.3 through 2.3.5.2, the submission-login compon... 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. Scope: local bookworm: resolved (fixed in 1:2.3.4.1-5) bullseye: resolved (fixed in 1:2.3.4.1-5) forky: resolved (fixed in 1:2.3.4.1-5) sid: resolved (fixed in 1:2.3.4.1-5) trix

CVE-2019-3814 [HIGH] CVE-2019-3814: dovecot - It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly ... 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. Scope: local bookworm: resolved (fixed in 1:2.3.4.1-1) bullseye: resolved (fixed in 1:2.3.4.1-1) forky: resolved (fixed

CVE-2019-7524 [HIGH] CVE-2019-7524: dovecot - In Dovecot before 2.2.36.3 and 2.3.x before 2.3.5.1, a local attacker can cause ... 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. Scope: local bookworm: resolved (fixed in 1:2.3.4.1-3) bullseye: resolved (fixed in 1:2.3.4.1-3) forky: resolved (fixed in 1:2.3

CVE-2019-10691 [HIGH] CVE-2019-10691: dovecot - The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash ... 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. Scope: local bookworm: resolved (fixed in 1:2.3.4.1-4) bullseye: resolved (fixed in 1:2.3.4.1-4) forky: resolved (fixed in 1:2.3.4.1-4) sid: resolved (fixed in 1:2.3.4.1-4) trixie: re

CVE-2019-11494 [HIGH] CVE-2019-11494: dovecot - In the IMAP Server in Dovecot 2.3.3 through 2.3.5.2, the submission-login servic... 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. Scope: local bookworm: resolved (fixed in 1:2.3.4.1-5) bullseye: resolved (fixed in 1:2.3.4.1-5) forky: resolved (fixed in 1:2.3.4.1-5) sid: resolved (fixed in 1:2.3.4.1-5) trixie: resolved (fixed in 1:2.3.4.1-5)

CVE-2019-19722 [MEDIUM] CVE-2019-19722: dovecot - In Dovecot before 2.3.9.2, an attacker can crash a push-notification driver with... 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. Scope: local bookworm: resolved bullseye: resolved forky: resolved sid: resolved trixie: resolved

CVE-2017-15132 [HIGH] CVE-2017-15132: dovecot - A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authent... 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. Scope: local bookworm: resolved (fixed in 1:2.2.34-1

CVE-2017-14461 [MEDIUM] CVE-2017-14461: dovecot - A specially crafted email delivered over SMTP and passed on to Dovecot by MTA ca... 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. Scope: local bookworm: resolved (fixed in 1:2.2.34-1) bullse

CVE-2017-15130 [MEDIUM] CVE-2017-15130: dovecot - A denial of service flaw was found in dovecot before 2.2.34. An attacker able to... 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. Scope: local bookworm: resolved (fixed in 1:2.2.34-1) bullseye: resolved (fixed in 1:2.2.34-1) forky: resolved (fixed in 1:2.2.34-1) sid: resolve

CVE-2017-2669 [LOW] CVE-2017-2669: dovecot - Dovecot before version 2.2.29 is vulnerable to a denial of service. When 'dict' ... 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 exces

CVE-2016-8652 [MEDIUM] CVE-2016-8652: dovecot - The auth component in Dovecot before 2.2.27, when auth-policy is configured, all... 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. Scope: local bookworm: resolved (fixed in 1:2.2.27-1) bullseye: resolved (fixed in 1:2.2.27-1) forky: resolved (fixed in 1:2.2.27-1) sid: resolved (fixed in 1:2.2.27-1) trix