CVE-2016-2550

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    CVE-2016-2550

    Published: 27 Apr 2016Last Modified: 15 Mar 2026

    Summary:

    Details: The Linux kernel before 4.5 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by leveraging incorrect tracking of descriptor ownership and sending each descriptor over a UNIX socket before closing it. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-4312.

    References: http://www.openwall.com/lists/oss-security/2016/02/23/2, http://www.ubuntu.com/usn/USN-2947-1, http://www.ubuntu.com/usn/USN-2947-2, http://www.ubuntu.com/usn/USN-2947-3, http://www.ubuntu.com/usn/USN-2948-1, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=415e3d3e90ce9e18727e8843ae343eda5a58fad6, http://www.debian.org/security/2016/dsa-3503, http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html, http://www.ubuntu.com/usn/USN-2946-1, http://www.ubuntu.com/usn/USN-2946-2, http://www.ubuntu.com/usn/USN-2948-2, http://www.ubuntu.com/usn/USN-2949-1, https://bugzilla.redhat.com/show_bug.cgi?id=1311517, https://github.com/torvalds/linux/commit/415e3d3e90ce9e18727e8843ae343eda5a58fad6

    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-2016-2550 | CVE-DB