CVE-2017-13721

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    CVE-2017-13721

    Published: 10 Oct 2017Last Modified: 7 Aug 2026

    Summary:

    Details: In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.

    References: http://www.debian.org/security/2017/dsa-4000, http://www.openwall.com/lists/oss-security/2017/10/04/10, http://www.securityfocus.com/bid/101238, https://cgit.freedesktop.org/xorg/xserver/commit/?id=b95f25af141d33a65f6f821ea9c003f66a01e1f1, https://lists.x.org/archives/xorg-announce/2017-October/002808.html, https://security.gentoo.org/glsa/201710-30

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    xorg-server-1.19.3
    xorg-server-1.19.2
    xorg-server-1.19.1
    xorg-server-1.19.0

    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-2017-13721 | CVE-DB