UBUNTU-CVE-2019-19783

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    UBUNTU-CVE-2019-19783

    Published: 16 Dec 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-19783
    Aliases:
    USN-4566-1

    Summary:

    Details: An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c.

    References: https://ubuntu.com/security/CVE-2019-19783, https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.html#security-fixes, https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.15.html, https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.html, https://www.cve.org/CVERecord?id=CVE-2019-19783, https://ubuntu.com/security/notices/USN-4566-1

    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
    UBUNTU-CVE-2019-19783 | CVE-DB