UBUNTU-CVE-2020-24386

    Dashboard / Vulnerabilities / UBUNTU-CVE-2020-24386

    UBUNTU-CVE-2020-24386

    Published: 4 Jan 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2020-24386
    Aliases:
    USN-4674-1

    Summary:

    Details: An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authenticated attacker can trigger unhibernation via attacker-controlled parameters, leading to access to other users' email messages (and path disclosure).

    References: https://ubuntu.com/security/CVE-2020-24386, https://ubuntu.com/security/notices/USN-4674-1, https://www.cve.org/CVERecord?id=CVE-2020-24386

    Affected packages

    Package

    Name: dovecot

    Purl: pkg:deb/ubuntu/dovecot@1:2.2.33.2-1ubuntu4.7?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:2.2.33.2-1ubuntu4.7

    Affected versions

    1:2.2.27-3ubuntu1
    1:2.2.33.2-1ubuntu1
    1:2.2.33.2-1ubuntu2
    1:2.2.33.2-1ubuntu3
    1:2.2.33.2-1ubuntu4
    1:2.2.33.2-1ubuntu4.1
    1:2.2.33.2-1ubuntu4.2
    1:2.2.33.2-1ubuntu4.3
    1:2.2.33.2-1ubuntu4.4
    1:2.2.33.2-1ubuntu4.5
    1:2.2.33.2-1ubuntu4.6

    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-2020-24386 | CVE-DB