UBUNTU-CVE-2017-12192

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    UBUNTU-CVE-2017-12192

    Published: 11 Oct 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-12192
    Aliases:
    USN-3469-1
    USN-3469-2
    USN-3487-1

    Summary:

    Details: The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.

    References: https://ubuntu.com/security/CVE-2017-12192, https://bugzilla.redhat.com/show_bug.cgi?id=1493435, https://lkml.org/lkml/2017/9/18/764, https://ubuntu.com/security/notices/USN-3469-1, https://ubuntu.com/security/notices/USN-3469-2, https://ubuntu.com/security/notices/USN-3487-1, https://ubuntu.com/security/notices/USN-3583-1, https://ubuntu.com/security/notices/USN-3583-2, https://www.cve.org/CVERecord?id=CVE-2017-12192

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-142.191

    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