This update for kvm fixes several issues. These security issues were fixed :

  - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the     bitblit copy routine cirrus_bitblt_cputovideo failed to     check the memory region, allowing for an out-of-bounds     write that allows for privilege escalation (bsc#1024972)

  - CVE-2017-2615: An error in the bitblt copy operation     could have allowed a malicious guest administrator to     cause an out of bounds memory access, possibly leading     to information disclosure or privilege escalation     (bsc#1023004)

  - CVE-2016-9776: The ColdFire Fast Ethernet Controller     emulator support was vulnerable to an infinite loop     issue while receiving packets in 'mcf_fec_receive'. A     privileged user/process inside guest could have used     this issue to crash the Qemu process on the host leading     to DoS (bsc#1013285)

  - CVE-2016-9911: The USB EHCI Emulation support was     vulnerable to a memory leakage issue while processing     packet data in 'ehci_init_transfer'. A guest     user/process could have used this issue to leak host     memory, resulting in DoS for the host (bsc#1014111)

  - CVE-2016-9907: The USB redirector usb-guest support was     vulnerable to a memory leakage flaw when destroying the     USB redirector in 'usbredir_handle_destroy'. A guest     user/process could have used this issue to leak host     memory, resulting in DoS for a host (bsc#1014109)

  - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1014702)

  - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1014702)

  - CVE-2017-5898: The CCID Card device emulator support was     vulnerable to an integer overflow allowing a privileged     user inside the guest to crash the Qemu process     resulting in DoS (bnc#1023907)

  - CVE-2016-10155: The virtual hardware watchdog     'wdt_i6300esb' was vulnerable to a memory leakage issue     allowing a privileged user to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1021129)

  - CVE-2017-5856: The MegaRAID SAS 8708EM2 Host Bus Adapter     emulation support was vulnerable to a memory leakage     issue allowing a privileged user to leak host memory     resulting in DoS (bsc#1023053)

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for xen fixes several issues. These security issues were fixed :

  - CVE-2017-5973: A infinite loop while doing control     transfer in xhci_kick_epctx allowed privileged user     inside the guest to crash the host process resulting in     DoS (bsc#1025188).

  - CVE-2016-10155: The virtual hardware watchdog     'wdt_i6300esb' was vulnerable to a memory leakage issue     allowing a privileged user to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1024183).

  - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the     bitblit copy routine cirrus_bitblt_cputovideo failed to     check the memory region, allowing for an out-of-bounds     write that allows for privilege escalation (bsc#1024834)

  - CVE-2017-5856: The MegaRAID SAS 8708EM2 Host Bus Adapter     emulation support was vulnerable to a memory leakage     issue allowing a privileged user to leak host memory     resulting in DoS (bsc#1024186).

  - CVE-2017-5898: The CCID Card device emulator support was     vulnerable to an integer overflow flaw allowing a     privileged user to crash the Qemu process on the host     resulting in DoS (bsc#1024307).

  - CVE-2017-2615: An error in the bitblt copy operation     could have allowed a malicious guest administrator to     cause an out of bounds memory access, possibly leading     to information disclosure or privilege escalation     (bsc#1023004)

  - A malicious guest could have, by frequently rebooting     over extended periods of time, run the host system out     of memory, resulting in a Denial of Service (DoS)     (bsc#1022871)

  - CVE-2017-5579: The 16550A UART serial device emulation     support was vulnerable to a memory leakage issue     allowing a privileged user to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1022627).

  - CVE-2016-9907: The USB redirector usb-guest support was     vulnerable to a memory leakage flaw when destroying the     USB redirector in 'usbredir_handle_destroy'. A guest     user/process could have used this issue to leak host     memory, resulting in DoS for a host (bsc#1014490)

  - CVE-2016-9911: The USB EHCI Emulation support was     vulnerable to a memory leakage issue while processing     packet data in 'ehci_init_transfer'. A guest     user/process could have used this issue to leak host     memory, resulting in DoS for the host (bsc#1014507)

  - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1015169)

  - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1015169)

  - CVE-2016-9101: A memory leak in hw/net/eepro100.c     allowed local guest OS administrators to cause a denial     of service (memory consumption and QEMU process crash)     by repeatedly unplugging an i8255x (PRO100) NIC device     (bsc#1013668).

  - CVE-2016-9776: The ColdFire Fast Ethernet Controller     emulator support was vulnerable to an infinite loop     issue while receiving packets in 'mcf_fec_receive'. A     privileged user/process inside guest could have used     this issue to crash the Qemu process on the host leading     to DoS (bsc#1013657)

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for xen fixes several issues. These security issues were fixed :

  - CVE-2017-5973: A infinite loop while doing control     transfer in xhci_kick_epctx allowed privileged user     inside the guest to crash the host process resulting in     DoS (bsc#1025188)

  - CVE-2016-10155: The virtual hardware watchdog     'wdt_i6300esb' was vulnerable to a memory leakage issue     allowing a privileged user to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1024183)

  - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the     bitblit copy routine cirrus_bitblt_cputovideo failed to     check the memory region, allowing for an out-of-bounds     write that allows for privilege escalation (bsc#1024834)

  - CVE-2017-5856: The MegaRAID SAS 8708EM2 Host Bus Adapter     emulation support was vulnerable to a memory leakage     issue allowing a privileged user to leak host memory     resulting in DoS (bsc#1024186)

  - CVE-2017-5898: The CCID Card device emulator support was     vulnerable to an integer overflow flaw allowing a     privileged user to crash the Qemu process on the host     resulting in DoS (bsc#1024307)

  - CVE-2017-2615: An error in the bitblt copy operation     could have allowed a malicious guest administrator to     cause an out of bounds memory access, possibly leading     to information disclosure or privilege escalation     (bsc#1023004)

  - CVE-2014-8106: A heap-based buffer overflow in the     Cirrus VGA emulator allowed local guest users to execute     arbitrary code via vectors related to blit regions     (bsc#907805).

  - A malicious guest could have, by frequently rebooting     over extended periods of time, run the host system out     of memory, resulting in a Denial of Service (DoS)     (bsc#1022871)

  - CVE-2017-5579: The 16550A UART serial device emulation     support was vulnerable to a memory leakage issue     allowing a privileged user to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1022627)

  - CVE-2016-9907: The USB redirector usb-guest support was     vulnerable to a memory leakage flaw when destroying the     USB redirector in 'usbredir_handle_destroy'. A guest     user/process could have used this issue to leak host     memory, resulting in DoS for a host (bsc#1014490)

  - CVE-2016-9911: The USB EHCI Emulation support was     vulnerable to a memory leakage issue while processing     packet data in 'ehci_init_transfer'. A guest     user/process could have used this issue to leak host     memory, resulting in DoS for the host (bsc#1014507)

  - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1015169)

  - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1015169)

  - CVE-2016-9101: A memory leak in hw/net/eepro100.c     allowed local guest OS administrators to cause a denial     of service (memory consumption and QEMU process crash)     by repeatedly unplugging an i8255x (PRO100) NIC device     (bsc#1013668)

  - CVE-2016-9776: The ColdFire Fast Ethernet Controller     emulator support was vulnerable to an infinite loop     issue while receiving packets in 'mcf_fec_receive'. A     privileged user/process inside guest could have used     this issue to crash the Qemu process on the host leading     to DoS (bsc#1013657)

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for qemu fixes several issues.

These security issues were fixed :

  - CVE-2017-5898: The CCID Card device emulator support was     vulnerable to an integer overflow flaw allowing a     privileged user to crash the Qemu process on the host     resulting in DoS (bsc#1023907).

  - CVE-2017-5857: The Virtio GPU Device emulator support     was vulnerable to a host memory leakage issue allowing a     guest user to leak host memory resulting in DoS     (bsc#1023073).

  - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the     bitblit copy routine cirrus_bitblt_cputovideo failed to     check the memory region, allowing for an out-of-bounds     write that allows for privilege escalation (bsc#1024972)

  - CVE-2017-2615: An error in the bitblt copy operation     could have allowed a malicious guest administrator to     cause an out of bounds memory access, possibly leading     to information disclosure or privilege escalation     (bsc#1023004)

  - CVE-2017-5856: The MegaRAID SAS 8708EM2 Host Bus Adapter     emulation support was vulnerable to a memory leakage     issue allowing a privileged user to leak host memory     resulting in DoS (bsc#1023053)

  - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1014702)

  - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1014702)

  - CVE-2016-10029: The Virtio GPU Device emulator support     was vulnerable to an OOB read issue allowing a guest     user to crash the Qemu process instance resulting in Dos     (bsc#1017081).

  - CVE-2016-10028: The Virtio GPU Device emulator support     was vulnerable to an out of bounds memory access issue     allowing a guest user to crash the Qemu process instance     on a host, resulting in DoS (bsc#1017084).

  - CVE-2016-10155: The virtual hardware watchdog     'wdt_i6300esb' was vulnerable to a memory leakage issue     allowing a privileged user to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1021129)

  - CVE-2017-5552: The Virtio GPU Device emulator support     was vulnerable to a memory leakage issue allowing a     guest user to leak host memory resulting in DoS     (bsc#1021195).

  - CVE-2017-5578: The Virtio GPU Device emulator support     was vulnerable to a memory leakage issue allowing a     guest user to leak host memory resulting in DoS     (bsc#1021481).

  - CVE-2017-5526: The ES1370 audio device emulation support     was vulnerable to a memory leakage issue allowing a     privileged user inside the guest to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1020589).

  - CVE-2017-5525: The ac97 audio device emulation support     was vulnerable to a memory leakage issue allowing a     privileged user inside the guest to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1020491).

  - CVE-2017-5667: The SDHCI device emulation support was     vulnerable to an OOB heap access issue allowing a     privileged user inside the guest to crash the Qemu     process resulting in DoS or potentially execute     arbitrary code with privileges of the Qemu process on     the host (bsc#1022541).

  - CVE-2017-5898: The CCID Card device emulator support was     vulnerable to an integer overflow allowing a privileged     user inside the guest to crash the Qemu process     resulting in DoS (bnc#1023907)

These non-security issues were fixed :

  - Fix name of s390x specific sysctl configuration file to     end with .conf (bsc#1026583)

  - XHCI fixes (bsc#977027)

  - Fixed rare race during s390x guest reboot

  - Fixed various inaccuracies in cirrus vga device     emulation

  - Fixed cause of infrequent migration failures from bad     virtio device state (bsc#1020928)

  - Fixed graphical update errors introduced by previous     security fix (bsc#1016779)

This update was imported from the SUSE:SLE-12-SP2:Update update project.

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.

ARM guests may induce host asynchronous abort [XSA-201, CVE-2016-9815, CVE-2016-9816, CVE-2016-9817, CVE-2016-9818] (#1399747) qemu: Divide by zero vulnerability in cirrus_do_copy (#1399055) [CVE-2016-9921, CVE-2016-9922] Qemu: 9pfs: memory leakage via proxy/handle callbacks (#1402278) qemu ioport array overflow [XSA-199, CVE-2016-9637]

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for xen fixes several issues. These security issues were fixed :

  - CVE-2016-10155: The virtual hardware watchdog     'wdt_i6300esb' was vulnerable to a memory leakage issue     allowing a privileged user to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1024183)

  - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the     bitblit copy routine cirrus_bitblt_cputovideo failed to     check the memory region, allowing for an out-of-bounds     write that allows for privilege escalation (bsc#1024834)

  - CVE-2017-2615: An error in the bitblt copy operation     could have allowed a malicious guest administrator to     cause an out of bounds memory access, possibly leading     to information disclosure or privilege escalation     (bsc#1023004)

  - CVE-2014-8106: A heap-based buffer overflow in the     Cirrus VGA emulator allowed local guest users to execute     arbitrary code via vectors related to blit regions     (bsc#907805)

  - CVE-2016-9911: The USB EHCI Emulation support was     vulnerable to a memory leakage issue while processing     packet data in 'ehci_init_transfer'. A guest     user/process could have used this issue to leak host     memory, resulting in DoS for the host (bsc#1014507)

  - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1015169)

  - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1015169)

  - CVE-2016-10013: Xen allowed local 64-bit x86 HVM guest     OS users to gain privileges by leveraging mishandling of     SYSCALL singlestep during emulation (bsc#1016340).

  - CVE-2016-9932: CMPXCHG8B emulation on x86 systems     allowed local HVM guest OS users to obtain sensitive     information from host stack memory via a     'supposedly-ignored' operand size prefix (bsc#1012651).

  - CVE-2016-9101: A memory leak in hw/net/eepro100.c     allowed local guest OS administrators to cause a denial     of service (memory consumption and QEMU process crash)     by repeatedly unplugging an i8255x (PRO100) NIC device     (bsc#1013668)

  - CVE-2016-9776: The ColdFire Fast Ethernet Controller     emulator support was vulnerable to an infinite loop     issue while receiving packets in 'mcf_fec_receive'. A     privileged user/process inside guest could have used     this issue to crash the Qemu process on the host leading     to DoS (bsc#1013657)

  - A malicious guest could have, by frequently rebooting     over extended periods of time, run the host system out     of memory, resulting in a Denial of Service (DoS)     (bsc#1022871)

  - CVE-2016-10024: Xen allowed local x86 PV guest OS kernel     administrators to cause a denial of service (host hang     or crash) by modifying the instruction stream     asynchronously while performing certain kernel     operations (bsc#1014298)

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:2408 advisory.

    KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of     architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines     that use KVM in environments managed by Red Hat products.

    Security Fix(es):

    * Quick Emulator (QEMU) built with Network Block Device (NBD) Server support was vulnerable to a null-     pointer dereference issue. The flaw could occur when releasing a client that was not initialized due to     failed negotiation. A remote user or process could exploit this flaw to crash the qemu-nbd server (denial     of service). (CVE-2017-9524)

    * An information-exposure flaw was found in Quick Emulator (QEMU) in Task Priority Register (TPR)     optimizations for 32-bit Windows guests. The flaw could occur while accessing TPR. A privileged user     inside a guest could use this issue to read portions of the host memory. (CVE-2016-4020)

    * A memory-leak flaw was found in the Quick Emulator (QEMU) built with USB xHCI controller emulation     support. The flaw could occur while doing a USB-device unplug operation. Unplugging the device repeatedly     resulted in leaking host memory, which affected other services on the host. A privileged user inside the     guest could exploit this flaw to cause a denial of service on the host or potentially crash the host's     QEMU process instance. (CVE-2016-7466)

    * Multiple CVEs were fixed as a result of rebase to QEMU 2.9.0. (CVE-2016-6888, CVE-2016-7422,     CVE-2016-8576, CVE-2016-8669, CVE-2016-8909, CVE-2016-8910, CVE-2016-9907, CVE-2016-9911, CVE-2016-9921,     CVE-2016-9922, CVE-2016-10155, CVE-2017-5579, CVE-2017-5973, CVE-2017-6414, CVE-2017-8309, CVE-2017-8379,     CVE-2017-9310, CVE-2017-9373, CVE-2017-9374, CVE-2017-9375)

    Red Hat would like to thank Donghai Zdh (Alibaba Inc.) for reporting CVE-2016-4020; Li Qiang (Qihoo 360     Inc.) for reporting CVE-2016-6888; Qinghao Tang (Marvel Team 360.cn Inc.) and Zhenhao Hong (Marvel Team     360.cn Inc.) for reporting CVE-2016-7422; Li Qiang (360.cn Inc.) for reporting CVE-2016-7466,     CVE-2016-10155, CVE-2017-5579, CVE-2017-5973, and CVE-2017-6414; PSIRT (Huawei Inc.) for reporting     CVE-2016-8669; Andrew Henderson (Intelligent Automation Inc.) for reporting CVE-2016-8910; Qinghao Tang     (Qihoo 360), Li Qiang (Qihoo 360), and Jiangxin (Huawei Inc.) for reporting CVE-2016-9921 and     CVE-2016-9922; Jiang Xin (PSIRT, Huawei Inc.) for reporting CVE-2017-8309 and CVE-2017-8379; and Li Qiang     (Qihoo 360 Gear Team) for reporting CVE-2017-9310, CVE-2017-9373, CVE-2017-9374, and CVE-2017-9375.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Multiple vulnerabilities have been found in QEMU :

CVE-2016-9911

Quick Emulator (Qemu) built with the USB EHCI Emulation support is vulnerable to a memory leakage issue. It could occur while processing packet data in 'ehci_init_transfer'. A guest user/ process could use this issue to leak host memory, resulting in DoS for a host.

CVE-2016-9921, CVE-2016-9922

Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.

For Debian 7 'Wheezy', these problems have been fixed in version 1.1.2+dfsg-6+deb7u19.

We recommend that you upgrade your qemu packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Several vulnerabilities were found in qemu, a fast processor emulator :

CVE-2015-8666

Heap-based buffer overflow in QEMU when built with the Q35-chipset-based PC system emulator

CVE-2016-2198

NULL pointer dereference in ehci_caps_write in the USB EHCI support that may result in denial of service

CVE-2016-6833

Use after free while writing in the vmxnet3 device that could be used to cause a denial of service

CVE-2016-6835

Buffer overflow in vmxnet_tx_pkt_parse_headers() in vmxnet3 device that could result in denial of service

CVE-2016-8576

Infinite loop vulnerability in xhci_ring_fetch in the USB xHCI support

CVE-2016-8667 / CVE-2016-8669

Divide by zero errors in set_next_tick in the JAZZ RC4030 chipset emulator, and in serial_update_parameters of some serial devices, that could result in denial of service

CVE-2016-9602

Improper link following with VirtFS

CVE-2016-9603

Heap buffer overflow via vnc connection in the Cirrus CLGD 54xx VGA emulator support

CVE-2016-9776

Infinite loop while receiving data in the ColdFire Fast Ethernet Controller emulator

CVE-2016-9907

Memory leakage in the USB redirector usb-guest support 

CVE-2016-9911

Memory leakage in ehci_init_transfer in the USB EHCI support

CVE-2016-9914 / CVE-2016-9915 / CVE-2016-9916

Plan 9 File System (9pfs): add missing cleanup operation in FileOperations, in the handle backend and in the proxy backend driver

CVE-2016-9921 / CVE-2016-9922

Divide by zero in cirrus_do_copy in the Cirrus CLGD 54xx VGA Emulator support 

CVE-2016-10155

Memory leak in hw/watchdog/wdt_i6300esb.c allowing local guest OS privileged users to cause a denial of service via a large number of device unplug operations.

CVE-2017-2615 / CVE-2017-2620 / CVE-2017-18030 / CVE-2018-5683 / CVE-2017-7718

Out-of-bounds access issues in the Cirrus CLGD 54xx VGA emulator support, that could result in denial of service

CVE-2017-5525 / CVE-2017-5526

Memory leakage issues in the ac97 and es1370 device emulation

CVE-2017-5579

Most memory leakage in the 16550A UART emulation

CVE-2017-5667

Out-of-bounds access during multi block SDMA transfer in the SDHCI emulation support.

CVE-2017-5715

Mitigations against the Spectre v2 vulnerability. For more information please refer to https://www.qemu.org/2018/01/04/spectre/

CVE-2017-5856

Memory leak in the MegaRAID SAS 8708EM2 Host Bus Adapter emulation support

CVE-2017-5973 / CVE-2017-5987 / CVE-2017-6505

Infinite loop issues in the USB xHCI, in the transfer mode register of the SDHCI protocol, and the USB ohci_service_ed_list

CVE-2017-7377

9pfs: host memory leakage via v9fs_create

CVE-2017-7493

Improper access control issues in the host directory sharing via 9pfs support.

CVE-2017-7980

Heap-based buffer overflow in the Cirrus VGA device that could allow local guest OS users to execute arbitrary code or cause a denial of service

CVE-2017-8086

9pfs: host memory leakage via v9pfs_list_xattr

CVE-2017-8112

Infinite loop in the VMWare PVSCSI emulation

CVE-2017-8309 / CVE-2017-8379

Host memory leakage issues via the audio capture buffer and the keyboard input event handlers 

CVE-2017-9330

Infinite loop due to incorrect return value in USB OHCI that may result in denial of service

CVE-2017-9373 / CVE-2017-9374

Host memory leakage during hot unplug in IDE AHCI and USB emulated devices that could result in denial of service

CVE-2017-9503

NULL pointer dereference while processing megasas command

CVE-2017-10806

Stack buffer overflow in USB redirector

CVE-2017-10911

Xen disk may leak stack data via response ring

CVE-2017-11434

Out-of-bounds read while parsing Slirp/DHCP options

CVE-2017-14167

Out-of-bounds access while processing multiboot headers that could result in the execution of arbitrary code

CVE-2017-15038

9pfs: information disclosure when reading extended attributes

CVE-2017-15289

Out-of-bounds write access issue in the Cirrus graphic adaptor that could result in denial of service

CVE-2017-16845

Information leak in the PS/2 mouse and keyboard emulation support that could be exploited during instance migration 

CVE-2017-18043

Integer overflow in the macro ROUND_UP (n, d) that could result in denial of service

CVE-2018-7550

Incorrect handling of memory during multiboot that could may result in execution of arbitrary code

For Debian 8 'Jessie', these problems have been fixed in version 1:2.1+dfsg-12+deb8u7.

We recommend that you upgrade your qemu packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for kvm fixes several issues. These security issues were fixed :

  - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the     bitblit copy routine cirrus_bitblt_cputovideo failed to     check the memory region, allowing for an out-of-bounds     write that allows for privilege escalation (bsc#1024972)

  - CVE-2017-2615: An error in the bitblt copy operation     could have allowed a malicious guest administrator to     cause an out of bounds memory access, possibly leading     to information disclosure or privilege escalation     (bsc#1023004)

  - CVE-2016-9776: The ColdFire Fast Ethernet Controller     emulator support was vulnerable to an infinite loop     issue while receiving packets in 'mcf_fec_receive'. A     privileged user/process inside guest could have used     this issue to crash the Qemu process on the host leading     to DoS (bsc#1013285)

  - CVE-2016-9911: The USB EHCI Emulation support was     vulnerable to a memory leakage issue while processing     packet data in 'ehci_init_transfer'. A guest     user/process could have used this issue to leak host     memory, resulting in DoS for the host (bsc#1014111)

  - CVE-2016-9907: The USB redirector usb-guest support was     vulnerable to a memory leakage flaw when destroying the     USB redirector in 'usbredir_handle_destroy'. A guest     user/process could have used this issue to leak host     memory, resulting in DoS for a host (bsc#1014109)

  - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1014702)

  - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1014702)

  - CVE-2017-5898: The CCID Card device emulator support was     vulnerable to an integer overflow allowing a privileged     user inside the guest to crash the Qemu process     resulting in DoS (bnc#1023907)

  - CVE-2016-10155: The virtual hardware watchdog     'wdt_i6300esb' was vulnerable to a memory leakage issue     allowing a privileged user to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1021129)

  - CVE-2017-5856: The MegaRAID SAS 8708EM2 Host Bus Adapter     emulation support was vulnerable to a memory leakage     issue allowing a privileged user to leak host memory     resulting in DoS (bsc#1023053)

  - CVE-2016-9602: The VirtFS host directory sharing via     Plan 9 File System(9pfs) support was vulnerable to an     improper link following issue which allowed a privileged     user inside guest to access host file system beyond the     shared folder and potentially escalating their     privileges on a host (bsc#1020427)

  - CVE-2016-9603: A privileged user within the guest VM     could have caused a heap overflow in the device model     process, potentially escalating their privileges to that     of the device model process (bsc#1028656)

  - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which     allowed remote attackers to cause a denial of service     (daemon crash) by disconnecting during a     server-to-client reply attempt (bsc#1046636)

  - CVE-2017-10806: Stack-based buffer overflow allowed     local guest OS users to cause a denial of service (QEMU     process crash) via vectors related to logging debug     messages (bsc#1047674)

  - CVE-2017-11334: The address_space_write_continue     function allowed local guest OS privileged users to     cause a denial of service (out-of-bounds access and     guest instance crash) by leveraging use of     qemu_map_ram_ptr to access guest ram block area     (bsc#1048902)

  - CVE-2017-11434: The dhcp_decode function in     slirp/bootp.c allowed local guest OS users to cause a     denial of service (out-of-bounds read) via a crafted     DHCP options string (bsc#1049381)

  - CVE-2017-13672: The VGA display emulator support allowed     local guest OS privileged users to cause a denial of     service (out-of-bounds read and QEMU process crash) via     vectors involving display update (bsc#1056334)

  - CVE-2017-14167: Integer overflow in the load_multiboot     function allowed local guest OS users to execute     arbitrary code on the host via crafted multiboot header     address values, which trigger an out-of-bounds write     (bsc#1057585)

  - CVE-2017-15038: Race condition in the v9fs_xattrwalk     function local guest OS users to obtain sensitive     information from host heap memory via vectors related to     reading extended attributes (bsc#1062069)

  - CVE-2017-15289: The mode4and5 write functions allowed     local OS guest privileged users to cause a denial of     service (out-of-bounds write access and Qemu process     crash) via vectors related to dst calculation     (bsc#1063122)

  - CVE-2017-5579: The 16550A UART serial device emulation     support was vulnerable to a memory leakage issue     allowing a privileged user to cause a DoS and/or     potentially crash the Qemu process on the host     (bsc#1021741)

  - CVE-2017-5973: A infinite loop while doing control     transfer in xhci_kick_epctx allowed privileged user     inside the guest to crash the host process resulting in     DoS (bsc#1025109)

  - CVE-2017-6505: The ohci_service_ed_list function allowed     local guest OS users to cause a denial of service     (infinite loop) via vectors involving the number of link     endpoint list descriptors (bsc#1028184)

  - CVE-2017-7471: The VirtFS host directory sharing via     Plan 9 File System(9pfs) support was vulnerable to an     improper access control issue which allowed a privileged     user inside guest to access host file system beyond the     shared folder and potentially escalating their     privileges on a host (bsc#1034866)

  - CVE-2017-7493: The VirtFS, host directory sharing via     Plan 9 File System(9pfs) support, was vulnerable to an     improper access control issue. It could occur while     accessing virtfs metadata files in mapped-file security     mode. A guest user could have used this flaw to escalate     their privileges inside guest (bsc#1039495)

  - CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local     guest OS privileged users to cause a denial of service     (out-of-bounds read and QEMU process crash) via vectors     related to copying VGA data via the     cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_     functions (bsc#1034908)

  - CVE-2017-7980: An out-of-bounds r/w access issues in the     Cirrus CLGD 54xx VGA Emulator support allowed privileged     user inside guest to use this flaw to crash the Qemu     process resulting in DoS or potentially execute     arbitrary code on a host with privileges of Qemu process     on the host (bsc#1035406)

  - CVE-2017-8086: A memory leak in the v9fs_list_xattr     function in hw/9pfs/9p-xattr.c allowed local guest OS     privileged users to cause a denial of service (memory     consumption) via vectors involving the orig_value     variable (bsc#1035950)

  - CVE-2017-8309: Memory leak in the audio/audio.c allowed     remote attackers to cause a denial of service (memory     consumption) by repeatedly starting and stopping audio     capture (bsc#1037242)

  - CVE-2017-9330: USB OHCI Emulation in qemu allowed local     guest OS users to cause a denial of service (infinite     loop) by leveraging an incorrect return value     (bsc#1042159)

  - CVE-2017-9373: The IDE AHCI Emulation support was     vulnerable to a host memory leakage issue, which allowed     a privileged user inside guest to leak host memory     resulting in DoS (bsc#1042801)

  - CVE-2017-9375: The USB xHCI controller emulator support     was vulnerable to an infinite recursive call loop issue,     which allowed a privileged user inside guest to crash     the Qemu process resulting in DoS (bsc#1042800)

  - CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter     emulation support was vulnerable to a NULL pointer     dereference issue which allowed a privileged user inside     guest to crash the Qemu process on the host resulting in     DoS (bsc#1043296)

  - Fix privilege escalation in TCG mode (bsc#1030624)

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for xen fixes several issues.

These security issues were fixed :

  - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the     bitblit copy routine cirrus_bitblt_cputovideo failed to     check the memory region, allowing for an out-of-bounds     write that allows for privilege escalation     (bsc#1024834).

  - CVE-2017-2615: An error in the bitblt copy operation     could have allowed a malicious guest administrator to     cause an out of bounds memory access, possibly leading     to information disclosure or privilege escalation     (bsc#1023004).

  - A malicious guest could have, by frequently rebooting     over extended periods of time, run the host system out     of memory, resulting in a Denial of Service (DoS)     (bsc#1022871)

  - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support     was vulnerable to a divide by zero issue while copying     VGA data. A privileged user inside guest could have used     this flaw to crash the process instance on the host,     resulting in DoS (bsc#1015169

These non-security issues were fixed :

  - bsc#1000195: Prevent panic on CPU0 while booting on SLES     11 SP3 

  - bsc#1002496: Added support for reloading clvm in     block-dmmd block-dmmd

  - bsc#1005028: Fixed building Xen RPMs from Sources

This update was imported from the SUSE:SLE-12-SP2:Update update project.

ID	Name	Product	Family	Published	Updated	Severity
99758	SUSE SLES11 Security Update : kvm (SUSE-SU-2017:1135-1)	Nessus	SuSE Local Security Checks	5/1/2017	12/23/2025	critical
97432	SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2017:0570-1)	Nessus	SuSE Local Security Checks	2/28/2017	12/31/2025	critical
97467	SUSE SLES12 Security Update : xen (SUSE-SU-2017:0582-1)	Nessus	SuSE Local Security Checks	3/1/2017	12/31/2025	critical
97791	openSUSE Security Update : qemu (openSUSE-2017-349)	Nessus	SuSE Local Security Checks	3/17/2017	12/30/2025	critical
99581	Ubuntu 14.04 LTS / 16.04 LTS : QEMU vulnerabilities (USN-3261-1)	Nessus	Ubuntu Local Security Checks	4/21/2017	9/3/2025	critical
96025	Fedora 23 : xen (2016-cc2916dcf4)	Nessus	Fedora Local Security Checks	12/20/2016	1/8/2026	high
97828	SUSE SLES11 Security Update : xen (SUSE-SU-2017:0718-1)	Nessus	SuSE Local Security Checks	3/20/2017	12/29/2025	critical
210314	RHEL 7 : qemu-kvm-rhev (RHSA-2017:2408)	Nessus	Red Hat Local Security Checks	11/5/2024	11/5/2024	medium
96099	Debian DLA-764-1 : qemu security update	Nessus	Debian Local Security Checks	12/27/2016	1/7/2026	medium
117351	Debian DLA-1497-1 : qemu security update (Spectre)	Nessus	Debian Local Security Checks	9/7/2018	8/8/2024	critical
104780	SUSE SLES11 Security Update : kvm (SUSE-SU-2017:3084-1)	Nessus	SuSE Local Security Checks	11/27/2017	11/13/2025	critical
97712	openSUSE Security Update : xen (openSUSE-2017-329)	Nessus	SuSE Local Security Checks	3/14/2017	12/30/2025	critical

Detections

Analytics

Plugins Search

critical

critical

critical

critical

critical

high

critical

medium

medium

critical

critical

critical