CVE-2011-4407

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    CVE-2011-4407

    Published: 14 May 2014Last Modified: 10 Apr 2026

    Summary:

    Details: ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.

    References: http://www.ubuntu.com/usn/USN-1352-1, https://bugs.launchpad.net/ubuntu/%2Bsource/software-properties/%2Bbug/915210

    Affected packages

    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