• [SECURITY] [DSA 4130-1] dovecot security update

    From Salvatore Bonaccorso@1:229/2 to All on Fri Mar 2 23:30:01 2018
    From: [email protected]

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    - ------------------------------------------------------------------------- Debian Security Advisory DSA-4130-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso
    March 02, 2018 https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package : dovecot
    CVE ID : CVE-2017-14461 CVE-2017-15130 CVE-2017-15132
    Debian Bug : 888432 891819 891820

    Several vulnerabilities have been discovered in the Dovecot email
    server. The Common Vulnerabilities and Exposures project identifies the following issues:

    CVE-2017-14461

    Aleksandar Nikolic of Cisco Talos and 'flxflndy' discovered that
    Dovecot does not properly parse invalid email addresses, which may
    cause a crash or leak memory contents to an attacker.

    CVE-2017-15130

    It was discovered that TLS SNI config lookups may lead to excessive
    memory usage, causing imap-login/pop3-login VSZ limit to be reached
    and the process restarted, resulting in a denial of service. Only
    Dovecot configurations containing local_name { } or local { }
    configuration blocks are affected.

    CVE-2017-15132

    It was discovered that Dovecot contains a memory leak flaw in the
    login process on aborted SASL authentication.

    For the oldstable distribution (jessie), these problems have been fixed
    in version 1:2.2.13-12~deb8u4.

    For the stable distribution (stretch), these problems have been fixed in version 1:2.2.27-3+deb9u2.

    We recommend that you upgrade your dovecot packages.

    For the detailed security status of dovecot please refer to its security tracker page at:
    https://security-tracker.debian.org/tracker/dovecot

    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/

    Mailing list: [email protected]
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    --- SoupGate-Win32 v1.05
    * Origin: you cannot sedate... all the things you hate (1:229/2)