UBUNTU-CVE-2015-7513

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    UBUNTU-CVE-2015-7513

    Published: 31 Dec 2015Last Modified: 26 Aug 2026
    Upstream:
    CVE-2015-7513
    Aliases:
    USN-2886-1
    USN-2886-2
    USN-2887-1

    Summary:

    Details: arch/x86/kvm/x86.c in the Linux kernel before 4.4 does not reset the PIT counter values during state restoration, which allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via a zero value, related to the kvm_vm_ioctl_set_pit and kvm_vm_ioctl_set_pit2 functions.

    References: https://ubuntu.com/security/CVE-2015-7513, https://git.kernel.org/linus/0185604c2d82c560dab2f2933a18f797e74ab5a8, https://ubuntu.com/security/notices/USN-2886-1, https://ubuntu.com/security/notices/USN-2886-2, https://ubuntu.com/security/notices/USN-2889-2, https://ubuntu.com/security/notices/USN-2889-1, https://ubuntu.com/security/notices/USN-2887-1, https://ubuntu.com/security/notices/USN-2887-2, https://ubuntu.com/security/notices/USN-2888-1, https://ubuntu.com/security/notices/USN-2890-1, https://ubuntu.com/security/notices/USN-2890-2, https://ubuntu.com/security/notices/USN-2890-3, https://www.cve.org/CVERecord?id=CVE-2015-7513

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-77.121

    Affected versions

    3.11.0-12.19

    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