UBUNTU-CVE-2026-27860

If authusernamechars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions and allows probing of LDAP structure. Do not clear out authusernamechars, or install fixed version. No publicly available exploits are...

UBUNTU-CVE-2026-27855

Dovecot OTP authentication is vulnerable to replay attack under specific conditions. If auth cache is enabled, and username is altered in passdb, then OTP credentials can be cached so that same OTP reply is valid. An attacker able to observe an OTP exchange is able to log in as the user. If...

MiracleLinux 9 : dovecot-2.3.16-11.el9_4.1 (AXSA:2024-8803:04)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2024-8803:04 advisory. dovecot: using a large number of address headers may trigger a denial of service CVE-2024-23184 dovecot: very large headers can cause resource...

MiracleLinux 7 : dovecot-2.2.36-6.el7 (AXSA:2020-4708:01)

The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2020-4708:01 advisory. dovecot: Improper certificate validation CVE-2019-3814 dovecot: Buffer overflow in indexer-worker process results in privilege escalation...

MiracleLinux 8 : dovecot-2.3.16-6.el8_10 (AXSA:2024-8878:05)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2024-8878:05 advisory. dovecot: using a large number of address headers may trigger a denial of service CVE-2024-23184 dovecot: very large headers can cause resource...

MiracleLinux 8 : dovecot-2.3.8-4.el8 (AXSA:2021-1195:01)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2021-1195:01 advisory. dovecot: command followed by sufficient number of newlines leads to use-after-free CVE-2020-10958 dovecot: sending mail with empty quoted localpart...

MiracleLinux 8 : dovecot-2.3.16-3.el8 (AXSA:2022-4213:02)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2022-4213:02 advisory. dovecot: Privilege escalation when similar master and non-master passdbs are used CVE-2022-30550 Tenable has extracted the preceding description block direct...

MiracleLinux 7 : dovecot-2.2.36-6.el7.1 (AXSA:2020-288:02)

The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2020-288:02 advisory. dovecot: Resource exhaustion via deeply nested MIME parts CVE-2020-12100 dovecot: Out of bound reads in dovecot NTLM implementation CVE-2020-12673...

MiracleLinux 9 : dovecot-2.3.16-7.el9 (AXSA:2023-4711:01)

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2023-4711:01 advisory. dovecot: Privilege escalation when similar master and non-master passdbs are used CVE-2022-30550 Tenable has extracted the preceding description block direct...

MiracleLinux 8 : dovecot-2.3.8-2.el8.2 (AXSA:2020-546:03)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2020-546:03 advisory. dovecot: Resource exhaustion via deeply nested MIME parts CVE-2020-12100 dovecot: Out of bound reads in dovecot NTLM implementation CVE-2020-12673...

MiracleLinux 8 : dovecot-2.3.16-2.el8 (AXSA:2022-3412:01)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2022-3412:01 advisory. dovecot: plaintext commands injection CVE-2021-33515 Tenable has extracted the preceding description block directly from the MiracleLinux security advisory...

MiracleLinux 8 : dovecot-2.3.8-9.el8 (AXSA:2021-2023:02)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2021-2023:02 advisory. dovecot: IMAP hibernation function allows mail access CVE-2020-24386 dovecot: Denial of service via mail MIME parsing CVE-2020-25275 Tenable has...

MiracleLinux 7 : dovecot-2.2.36-3.el7.1 (AXSA:2019-4341:02)

The remote MiracleLinux 7 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2019-4341:02 advisory. dovecot: improper NULL byte handling in IMAP and ManageSieve protocol parsers leads to out of bounds writes CVE-2019-11500 Tenable has extracted the precedin...

MiracleLinux 4 : dovecot-2.0.9-22.AXS4.1 (AXSA:2019-4315:01)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2019-4315:01 advisory. dovecot: improper NULL byte handling in IMAP and ManageSieve protocol parsers leads to out of bounds writes CVE-2019-11500 Tenable has extracted the precedin...

MiracleLinux 4 : dovecot-2.0.9-7.AXS4.1 (AXSA:2014-438:02)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2014-438:02 advisory. Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mail in eith...

MiracleLinux 4 : dovecot-2.0.9-5.AXS4 (AXSA:2013-272:01)

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2013-272:01 advisory. Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mai...

MiracleLinux 3 : dovecot-1.0.7-7.1AXS3 (AXSA:2009-18:01)

The remote MiracleLinux 3 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2009-18:01 advisory. Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mail...

MiracleLinux 3 : dovecot-1.0.7-7.1.0.1.AXS3 (AXSA:2011-295:01)

The remote MiracleLinux 3 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2011-295:01 advisory. Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mail in eith...

MiracleLinux 3 : dovecot-1.0.7-2.1AXS3 (AXSA:2008-76:01)

The remote MiracleLinux 3 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2008-76:01 advisory. Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mail...

MiracleLinux 4 : dovecot-2.0.9-2.AXS4 (AXSA:2011-212:01)

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2011-212:01 advisory. Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mai...