UBUNTU-CVE-2021-38371

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    UBUNTU-CVE-2021-38371

    Published: 10 Aug 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-38371
    Aliases:
    USN-6881-1

    Summary:

    Details: The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending.

    References: https://ubuntu.com/security/CVE-2021-38371, https://nostarttls.secvuln.info, https://www.exim.org/static/doc/security/CVE-2021-38371.txt, https://www.cve.org/CVERecord?id=CVE-2021-38371, https://ubuntu.com/security/notices/USN-6881-1

    Affected packages

    Package

    Name: exim4

    Purl: pkg:deb/ubuntu/[email protected]+esm8?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.82-3ubuntu2.4+esm8

    Affected versions

    4.80-7ubuntu3

    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-2021-38371 | CVE-DB