USN-3453-1

    Dashboard / Vulnerabilities / USN-3453-1

    USN-3453-1

    Published: 12 Oct 2017Last Modified: 22 Apr 2026

    Summary: xorg-server, xorg-server-hwe-16.04, xorg-server-lts-xenial vulnerabilities

    Details: Michal Srb discovered that the X.Org X server incorrectly handled shared memory segments. An attacker able to connect to an X server, either locally or remotely, could use this issue to crash the server, or possibly replace shared memory segments of other X clients in the same session. (CVE-2017-13721) Michal Srb discovered that the X.Org X server incorrectly handled XKB buffers. An attacker able to connect to an X server, either locally or remotely, could use this issue to crash the server, or possibly execute arbitrary code. (CVE-2017-13723)

    References: https://ubuntu.com/security/notices/USN-3453-1, https://ubuntu.com/security/CVE-2017-13721, https://ubuntu.com/security/CVE-2017-13723

    Affected packages

    Package

    Name: xorg-server

    Purl: pkg:deb/ubuntu/xorg-server@2:1.15.1-0ubuntu2.10?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:1.15.1-0ubuntu2.10

    Affected versions

    2:1.14.3-3ubuntu2
    2:1.14.3-3ubuntu3
    2:1.14.3-3ubuntu4
    2:1.14.3-5ubuntu1
    2:1.14.4-1ubuntu1
    2:1.14.4-1ubuntu2
    2:1.14.4.901-0ubuntu2
    2:1.14.5-1ubuntu2
    2:1.14.5-1ubuntu4

    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