The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2974-1 advisory.

    Zuozhi Fzz discovered that QEMU incorrectly handled USB OHCI emulation support. A privileged attacker     inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service.
    (CVE-2016-2391)

    Qinghao Tang discovered that QEMU incorrectly handled USB Net emulation support. A privileged attacker     inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service.
    (CVE-2016-2392)

    Qinghao Tang discovered that QEMU incorrectly handled USB Net emulation support. A privileged attacker     inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or     possibly leak host memory bytes. (CVE-2016-2538)

    Hongke Yang discovered that QEMU incorrectly handled NE2000 emulation support. A privileged attacker     inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service.
    (CVE-2016-2841)

    Ling Liu discovered that QEMU incorrectly handled IP checksum routines. An attacker inside the guest could     use this issue to cause QEMU to crash, resulting in a denial of service, or possibly leak host memory     bytes. (CVE-2016-2857)

    It was discovered that QEMU incorrectly handled the PRNG back-end support. An attacker inside the guest     could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only applied to     Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-2858)

    Wei Xiao and Qinghao Tang discovered that QEMU incorrectly handled access in the VGA module. A privileged     attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service,     or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with     libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2016-3710)

    Zuozhi Fzz discovered that QEMU incorrectly handled access in the VGA module. A privileged attacker inside     the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly     execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers     would be isolated by the libvirt AppArmor profile. (CVE-2016-3712)

    Oleksandr Bazhaniuk discovered that QEMU incorrectly handled Luminary Micro Stellaris ethernet controller     emulation. A remote attacker could use this issue to cause QEMU to crash, resulting in a denial of     service. (CVE-2016-4001)

    Oleksandr Bazhaniuk discovered that QEMU incorrectly handled MIPSnet controller emulation. A remote     attacker could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-4002)

    Donghai Zdh discovered that QEMU incorrectly handled the Task Priority Register(TPR). A privileged     attacker inside the guest could use this issue to possibly leak host memory bytes. This issue only applied     to Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-4020)

    Du Shaobo discovered that QEMU incorrectly handled USB EHCI emulation support. A privileged attacker     inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of     service. (CVE-2016-4037)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Ubuntu 14.04 LTS / 16.04 LTS : QEMU vulnerabilities (USN-2974-1)

critical Nessus Plugin ID 91122

Version 2.13