CVE-2015-7972

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    CVE-2015-7972

    Published: 30 Oct 2015Last Modified: 16 Apr 2026

    Summary:

    Details: The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to "heavy memory pressure."

    References: http://www.debian.org/security/2015/dsa-3414, http://xenbits.xen.org/xsa/advisory-153.html, https://security.gentoo.org/glsa/201604-03, http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html, http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html, http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html, http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html, http://support.citrix.com/article/CTX202404, http://www.securityfocus.com/bid/77365, http://www.securitytracker.com/id/1034036

    Affected packages

    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