CVE-2014-8594

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    CVE-2014-8594

    Published: 19 Nov 2014Last Modified: 10 Apr 2026

    Summary:

    Details: The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).

    References: http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html, http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html, http://www.debian.org/security/2015/dsa-3140, http://xenbits.xen.org/xsa/advisory-109.html, https://security.gentoo.org/glsa/201504-04, http://xenbits.xen.org/xsa/advisory-109.html, http://secunia.com/advisories/62672, http://www.securityfocus.com/bid/71149, https://exchange.xforce.ibmcloud.com/vulnerabilities/98767

    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
    CVE-2014-8594 | CVE-DB