UBUNTU-CVE-2017-15951

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    UBUNTU-CVE-2017-15951

    Published: 27 Oct 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-15951
    Aliases:
    USN-3485-1
    USN-3485-2
    USN-3485-3

    Summary:

    Details: The KEYS subsystem in the Linux kernel before 4.13.10 does not correctly synchronize the actions of updating versus finding a key in the "negative" state to avoid a race condition, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls.

    References: https://ubuntu.com/security/CVE-2017-15951, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=363b02dab09b3226f3bd1420dad9c72b79a42a76, http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.10, https://github.com/torvalds/linux/commit/363b02dab09b3226f3bd1420dad9c72b79a42a76, https://ubuntu.com/security/notices/USN-3485-1, https://ubuntu.com/security/notices/USN-3485-2, https://ubuntu.com/security/notices/USN-3485-3, https://ubuntu.com/security/notices/USN-3507-1, https://ubuntu.com/security/notices/USN-3507-2, https://www.cve.org/CVERecord?id=CVE-2017-15951

    Affected packages

    Package

    Name: linux-aws

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.4.0-1003.3

    Affected versions

    4.4.0-1002.2

    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