The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3261-1 advisory.

    Zhenhao Hong discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest     could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected     Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-10028, CVE-2016-10029)

    Li Qiang discovered that QEMU incorrectly handled the 6300esb watchdog. A privileged attacker inside the     guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-10155)

    Li Qiang discovered that QEMU incorrectly handled the i.MX Fast Ethernet Controller. A privileged attacker     inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue     only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7907)

    It was discovered that QEMU incorrectly handled the JAZZ RC4030 device. A privileged attacker inside the     guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-8667)

    It was discovered that QEMU incorrectly handled the 16550A UART device. A privileged attacker inside the     guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-8669)

    It was discovered that QEMU incorrectly handled the shared rings when used with Xen. 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. (CVE-2016-9381)

    Jann Horn discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged attacker inside     the guest could use this issue to access files on the host file system outside of the shared directory and     possibly escalate their privileges. In the default installation, when QEMU is used with libvirt, attackers     would be isolated by the libvirt AppArmor profile. (CVE-2016-9602)

    Gerd Hoffmann discovered that QEMU incorrectly handled the Cirrus VGA device when being used with a VNC     connection. 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-2016-9603)

    It was discovered that QEMU incorrectly handled the ColdFire Fast Ethernet Controller. A privileged     attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service.
    (CVE-2016-9776)

    Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest     could use this issue to cause QEMU to leak contents of host memory. This issue only affected Ubuntu 16.04     LTS and Ubuntu 16.10. (CVE-2016-9845, CVE-2016-9908)

    Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest     could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected     Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9846, CVE-2016-9912, CVE-2017-5552, CVE-2017-5578,     CVE-2017-5857)

    Li Qiang discovered that QEMU incorrectly handled the USB redirector. An attacker inside the guest could     use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu     16.04 LTS and Ubuntu 16.10. (CVE-2016-9907)

    Li Qiang discovered that QEMU incorrectly handled USB EHCI emulation. An attacker inside the guest could     use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9911)

    Li Qiang discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged attacker inside     the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9913,     CVE-2016-9914, CVE-2016-9915, CVE-2016-9916)

    Qinghao Tang, Li Qiang, and Jiangxin discovered that QEMU incorrectly handled the Cirrus VGA device. A     privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of     service. (CVE-2016-9921, CVE-2016-9922)

    Wjjzhang and Li Qiang discovered that QEMU incorrectly handled the Cirrus VGA device. 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-2017-2615)

    It was discovered that QEMU incorrectly handled the Cirrus VGA device. 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-2017-2620)

    It was discovered that QEMU incorrectly handled VNC connections. An attacker inside the guest could use     this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-2633)

    Li Qiang discovered that QEMU incorrectly handled the ac97 audio device. A privileged attacker inside the     guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5525)

    Li Qiang discovered that QEMU incorrectly handled the es1370 audio device. A privileged attacker inside     the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5526)

    Li Qiang discovered that QEMU incorrectly handled the 16550A UART device. A privileged attacker inside the     guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5579)

    Jiang Xin discovered that QEMU incorrectly handled SDHCI device emulation. 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-2017-5667)

    Li Qiang discovered that QEMU incorrectly handled the MegaRAID SAS device. A privileged attacker inside     the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5856)

    Li Qiang discovered that QEMU incorrectly handled the CCID Card device. A privileged attacker inside the     guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5898)

    Li Qiang discovered that QEMU incorrectly handled USB xHCI controller emulation. A privileged attacker     inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service.
    (CVE-2017-5973)

    Jiang Xin and Wjjzhang discovered that QEMU incorrectly handled SDHCI device emulation. A privileged     attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service.
    (CVE-2017-5987)

    Li Qiang discovered that QEMU incorrectly handled USB OHCI controller emulation. A privileged attacker     inside the guest could use this issue to cause QEMU to hang, resulting in a denial of service.
    (CVE-2017-6505)

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-3261-1)

critical Nessus Plugin ID 99581

Version 3.19