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Ubuntu Security Update USN-3587-1: Dovecot vulnerabilities

Discussion in 'Linux Security Announcements (Automated)' started by LinuxBot, Mar 6, 2018.

  1. LinuxBot

    LinuxBot Moderator
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    dovecot vulnerabilities


    A security issue affects these releases of Ubuntu and its derivatives:

    • Ubuntu 17.10
    • Ubuntu 16.04 LTS
    • Ubuntu 14.04 LTS
    Summary


    Several security issues were fixed in Dovecot.

    Software Description


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    • dovecot - IMAP and POP3 email server
    Details


    It was discovered that Dovecot incorrectly handled parsing certain email addresses. A remote attacker could use this issue to cause Dovecot to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2017-14461)

    It was discovered that Dovecot incorrectly handled TLS SNI config lookups. A remote attacker could possibly use this issue to cause Dovecot to crash, resulting in a denial of service. (CVE-2017-15130)

    Update instructions


    The problem can be corrected by updating your system to the following package versions:

    Ubuntu 17.10
    dovecot-core - 1:2.2.27-3ubuntu1.3
    Ubuntu 16.04 LTS
    dovecot-core - 1:2.2.22-1ubuntu2.7
    Ubuntu 14.04 LTS
    dovecot-core - 1:2.2.9-1ubuntu2.4

    To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

    In general, a standard system update will make all the necessary changes.

    References


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