According to the versions of the dovecot packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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).(CVE-2020-24386)

  - 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.(CVE-2020-25275)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Fedora 32 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-c90cb486f7 advisory.

  - 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). (CVE-2020-24386)

  - 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. (CVE-2020-25275)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-1887 advisory.

    - fix CVE-2020-24386 IMAP hibernation function allows mail access (#1913534)
    - fix CVE-2020-25275 denial of service via mail MIME parsing (#1914019)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4674-1 advisory.

    It was discovered that Dovecot incorrectly handled certain imap hibernation commands. A remote     authenticated attacker could possibly use this issue to access other users' email. This issue only     affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 20.10. (CVE-2020-24386)

    Innokentii Sennovskiy discovered that Dovecot incorrectly handled MIME parsing. A remote attacker could     possibly use this issue to cause Dovecot to crash, resulting in a denial of service. (CVE-2020-25275)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update for dovecot23 fixes the following issues :

Security issues fixed :

CVE-2020-12100: Fixed a resource exhaustion caused by deeply nested MIME parts (bsc#1174920).

CVE-2020-24386: Fixed an issue with IMAP hibernation that allowed users to access other users' emails (bsc#1180405).

CVE-2020-25275: Fixed a crash when the 10000th MIME part was message/rfc822 (bsc#1180406).

Non-security issues fixed :

Pigeonhole was updated to version 0.5.11.

Dovecot was updated to version 2.3.11.3.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1887 advisory.

    Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind.
    It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL     drivers and authentication plug-ins are provided as subpackages.

    Security Fix(es):

    * dovecot: IMAP hibernation function allows mail access (CVE-2020-24386)

    * dovecot: Denial of service via mail MIME parsing (CVE-2020-25275)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
145730	EulerOS 2.0 SP8 : dovecot (EulerOS-SA-2021-1139)	Nessus	Huawei Local Security Checks	2021/2/1	2021/2/4	medium
145197	Fedora 32 : 1:dovecot (2021-c90cb486f7)	Nessus	Fedora Local Security Checks	2021/1/20	2021/4/12	medium
149946	Oracle Linux 8 : dovecot (ELSA-2021-1887)	Nessus	Oracle Linux Local Security Checks	2021/5/26	2024/11/1	medium
144710	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Dovecot vulnerabilities (USN-4674-1)	Nessus	Ubuntu Local Security Checks	2021/1/4	2025/9/3	medium
144757	SUSE SLES15 Security Update : dovecot23 (SUSE-SU-2021:0029-1)	Nessus	SuSE Local Security Checks	2021/1/6	2024/1/30	medium
149667	RHEL 8 : dovecot (RHSA-2021:1887)	Nessus	Red Hat Local Security Checks	2021/5/19	2024/11/7	medium

检测

插件搜索

medium

medium

medium

medium

medium

medium