CVE-2017-12192

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    CVE-2017-12192

    Published: 12 Oct 2017Last Modified: 15 Mar 2026

    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://usn.ubuntu.com/3583-1/, https://usn.ubuntu.com/3583-2/, https://lkml.org/lkml/2017/9/18/764, http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5, https://access.redhat.com/errata/RHSA-2018:0151, https://bugzilla.redhat.com/show_bug.cgi?id=1493435, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678, https://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    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
    CVE-2017-12192 | CVE-DB