CVE-2015-7813

    Dashboard / Vulnerabilities / CVE-2015-7813

    CVE-2015-7813

    Published: 30 Oct 2015Last Modified: 16 Apr 2026

    Summary:

    Details: Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of (1) HYPERVISOR_physdev_op hypercalls, which are not properly handled in the do_physdev_op function in arch/arm/physdev.c, or (2) HYPERVISOR_hvm_op hypercalls, which are not properly handled in the do_hvm_op function in arch/arm/hvm.c.

    References: http://www.debian.org/security/2015/dsa-3414, http://xenbits.xen.org/xsa/advisory-146.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://www.securitytracker.com/id/1034029

    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