CVE-2017-2625

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    CVE-2017-2625

    Published: 27 Jul 2018Last Modified: 8 Jul 2026

    Summary:

    Details: It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.

    References: https://lists.debian.org/debian-lts-announce/2019/11/msg00024.html, http://www.securityfocus.com/bid/96480, http://www.securitytracker.com/id/1037919, https://access.redhat.com/errata/RHSA-2017:1865, https://cgit.freedesktop.org/xorg/lib/libXdmcp/commit/?id=0554324ec6bbc2071f5d1f8ad211a1643e29eb1f, https://security.gentoo.org/glsa/201704-03, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2625, https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -0c09444d276fbf46a0e8b427a4f6a325d0625742

    Affected versions

    7.0

    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