DEBIAN-CVE-2016-0772

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    DEBIAN-CVE-2016-0772

    Published: 2 Sept 2016Last Modified: 4 Aug 2026
    Upstream:
    CVE-2016-0772

    Summary:

    Details: The smtplib library in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 does not return an error when StartTLS fails, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."

    References: https://security-tracker.debian.org/tracker/CVE-2016-0772

    Affected packages

    Package

    Name: python2.7

    Purl: pkg:deb/debian/python2.7?arch=source&distro=bullseye

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.7.12~rc1-1

    Affected versions

    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