UBUNTU-CVE-2021-38084

    Dashboard / Vulnerabilities / UBUNTU-CVE-2021-38084

    UBUNTU-CVE-2021-38084

    Published: 3 Aug 2021Last Modified: 20 May 2026
    Upstream:

    Summary:

    Details: An issue was discovered in the POP3 component of Courier Mail Server before 1.1.5. Meddler-in-the-middle attackers can pipeline commands after the POP3 STLS command, injecting plaintext commands into an encrypted user session.

    Affected packages

    Package

    Name: courier

    Purl: pkg:deb/ubuntu/courier?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.68.2-1ubuntu5
    0.68.2-1ubuntu6
    0.68.2-1ubuntu7

    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-2021-38084 | CVE-DB