CVE-2013-4327

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    CVE-2013-4327

    Published: 3 Oct 2013Last Modified: 16 Apr 2026

    Summary:

    Details: systemd does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.

    References: http://www.debian.org/security/2013/dsa-2777, http://www.openwall.com/lists/oss-security/2013/09/18/6, http://www.ubuntu.com/usn/USN-1961-1, https://bugzilla.redhat.com/show_bug.cgi?id=1006680, http://www.openwall.com/lists/oss-security/2013/09/18/6, https://bugzilla.redhat.com/show_bug.cgi?id=1006680, https://bugzilla.redhat.com/show_bug.cgi?id=1006680

    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