USN-4566-1

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    USN-4566-1

    Published: 5 Oct 2020Last Modified: 22 Apr 2026

    Summary: cyrus-imapd vulnerabilities

    Details: 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)

    References: https://ubuntu.com/security/notices/USN-4566-1, https://ubuntu.com/security/CVE-2019-11356, https://ubuntu.com/security/CVE-2019-19783

    Affected packages

    Package

    Name: cyrus-imapd

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.5.10-3ubuntu1.1

    Affected versions

    2.5.10-3build1
    2.5.10-3build2
    2.5.10-3ubuntu1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    USN-4566-1 | CVE-DB