Linux Security
    Linux Security
    Linux Security

    Ubuntu 4566-1: Cyrus IMAP Server vulnerabilities

    Date 06 Oct 2020
    Posted By LinuxSecurity Advisories
    Cyrus IMAP Server could be made to overwrite files as the administrator.
    Ubuntu Security Notice USN-4566-1
    October 05, 2020
    cyrus-imapd vulnerabilities
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 18.04 LTS
    Cyrus IMAP Server could be made to overwrite files as the administrator.
    Software Description:
    - cyrus-imapd: An IMAP server
    It was dicovered that Cyrus IMAP Server could execute arbitrary code via a
    crafted HTTP PUT operation for an event with a long iCalendar property name.
    An attacker could use this vulnerability to cause a crash or possibly execute
    arbitrary code. (CVE-2019-11356)
    It was discovered that the Cyrus IMAP Server allow users to create any
    mailbox with administrative privileges. A local attacker could use this to
    obtain sensitive information. (CVE-2019-19783)
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 18.04 LTS:
      cyrus-admin                     2.5.10-3ubuntu1.1
      cyrus-caldav                    2.5.10-3ubuntu1.1
      cyrus-common                    2.5.10-3ubuntu1.1
      cyrus-imapd                     2.5.10-3ubuntu1.1
      cyrus-replication               2.5.10-3ubuntu1.1
    In general, a standard system update will make all the necessary changes.
      CVE-2019-11356, CVE-2019-19783
    Package Information:


    LinuxSecurity Poll

    How long have you been using Linux?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 4 answer(s).
    [{"id":"160","title":"Just made the switch!","votes":"1","type":"x","order":"1","pct":50,"resources":[]},{"id":"161","title":"1-5 years","votes":"0","type":"x","order":"2","pct":0,"resources":[]},{"id":"162","title":"6-10 years","votes":"0","type":"x","order":"3","pct":0,"resources":[]},{"id":"163","title":">10 years - I'm a veteran!","votes":"1","type":"x","order":"4","pct":50,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350

    Please vote first in order to view vote results.


    bottom 200

    Please enable / Bitte aktiviere JavaScript!
    Veuillez activer / Por favor activa el Javascript![ ? ]

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.