UBUNTU-CVE-2019-6133

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    UBUNTU-CVE-2019-6133

    Published: 11 Jan 2019Last Modified: 26 Aug 2026
    Upstream:
    CVE-2019-6133
    Aliases:
    USN-3901-1
    USN-3901-2
    USN-3903-1

    Summary:

    Details: In PolicyKit (aka polkit) 0.115, the "start time" protection mechanism can be bypassed because fork() is not atomic, and therefore authorization decisions are improperly cached. This is related to lack of uid checking in polkitbackend/polkitbackendinteractiveauthority.c.

    References: https://ubuntu.com/security/CVE-2019-6133, https://gitlab.freedesktop.org/polkit/polkit/merge_requests/19, https://git.kernel.org/linus/7b55851367136b1efd84d98fea81ba57a98304cf, https://ubuntu.com/security/notices/USN-3901-1, https://ubuntu.com/security/notices/USN-3901-2, https://ubuntu.com/security/notices/USN-3903-1, https://ubuntu.com/security/notices/USN-3903-2, https://ubuntu.com/security/notices/USN-3908-1, https://ubuntu.com/security/notices/USN-3908-2, https://ubuntu.com/security/notices/USN-3910-1, https://ubuntu.com/security/notices/USN-3910-2, https://ubuntu.com/security/notices/USN-3934-1, https://ubuntu.com/security/notices/USN-3934-2, https://www.cve.org/CVERecord?id=CVE-2019-6133

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-166.216

    Affected versions

    3.11.0-12.19

    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