UBUNTU-CVE-2015-8539

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    UBUNTU-CVE-2015-8539

    Published: 7 Feb 2016Last Modified: 22 Apr 2026
    Upstream:
    CVE-2015-8539

    Summary:

    Details: The KEYS subsystem in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user_defined.c.

    References: https://ubuntu.com/security/CVE-2015-8539, https://bugzilla.redhat.com/show_bug.cgi?id=1284450, http://www.openwall.com/lists/oss-security/2015/12/09/1, https://ubuntu.com/security/notices/USN-3798-1, https://ubuntu.com/security/notices/USN-3798-2, https://www.cve.org/CVERecord?id=CVE-2015-8539

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-161.211

    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
    UBUNTU-CVE-2015-8539 | CVE-DB