ID CVE-2017-7718
Summary hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows 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.
References
Vulnerable Configurations
  • QEMU
    cpe:2.3:a:qemu:qemu
CVSS
Base: 2.1 (as of 25-04-2017 - 12:48)
Impact:
Exploitability:
CWE CWE-125
CAPEC
  • Overread Buffers
    An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
nessus via4
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201706-03.NASL
    description The remote host is affected by the vulnerability described in GLSA-201706-03 (QEMU: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : A remote attacker might cause a Denial of Service or gain escalated privileges from a guest VM. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 100630
    published 2017-06-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100630
    title GLSA-201706-03 : QEMU: Multiple vulnerabilities
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-1431.NASL
    description An update for qemu-kvm-rhev is now available for RHEV 3.X Hypervisor and Agents for RHEL-7 and RHEV 4.X RHEV-H and Agents for RHEL-7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 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) : * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc.) for reporting CVE-2017-7718. Bug Fix(es) : * When using post-copy migration with the virtio Random Number Generator (RNG) device, virtio-rng continued generating data while the migration was already in post-copy mode. Consequently, the migration sometimes failed and the error message 'Failed to load virtio-rng:virtio' was displayed. The source code has been improved and the problem no longer occurs in the scenario described. (BZ#1450375)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 100833
    published 2017-06-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100833
    title RHEL 7 : qemu-kvm-rhev (RHSA-2017:1431)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-1035.NASL
    description Several vulnerabilities were discovered in qemu, a fast processor emulator. The Common Vulnerabilities and Exposures project identifies the following problems : CVE-2016-9603 qemu-kvm built with the Cirrus CLGD 54xx VGA Emulator and the VNC display driver support is vulnerable to a heap buffer overflow issue. It could occur when Vnc client attempts to update its display after a vga operation is performed by a guest. A privileged user/process inside guest could use this flaw to crash the Qemu process resulting in DoS OR potentially leverage it to execute arbitrary code on the host with privileges of the Qemu process. CVE-2017-7718 qemu-kvm built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt functions cirrus_bitblt_rop_fwd_transp_ and/or cirrus_bitblt_rop_fwd_. A privileged user inside guest could use this flaw to crash the Qemu process resulting in DoS. CVE-2017-7980 qemu-kvm built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds r/w access issues. It could occur while copying VGA data via various bitblt functions. A privileged user inside guest could 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. CVE-2016-9602 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper link following issue. It could occur while accessing symbolic link files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host. CVE-2017-7377 Quick Emulator(Qemu) built with the virtio-9p back-end support is vulnerable to a memory leakage issue. It could occur while doing a I/O operation via v9fs_create/v9fs_lcreate routine. A privileged user/process inside guest could use this flaw to leak host memory resulting in Dos. CVE-2017-7471 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host. CVE-2017-7493 Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could use this flaw to escalate their privileges inside guest. CVE-2017-8086 Quick Emulator(Qemu) built with the virtio-9p back-end support is vulnerable to a memory leakage issue. It could occur while querying file system extended attributes via 9pfs_list_xattr() routine. A privileged user/process inside guest could use this flaw to leak host memory resulting in Dos. For Debian 7 'Wheezy', these problems have been fixed in version 1.1.2+dfsg-6+deb7u22. 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.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 101909
    published 2017-07-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101909
    title Debian DLA-1035-1 : qemu security update
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20170613_QEMU_KVM_ON_SL7_X.NASL
    description Security Fix(es) : - An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) - An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Bug Fix(es) : - Previously, guest virtual machines in some cases became unresponsive when the 'pty' back end of a serial device performed an irregular I/O communication. This update improves the handling of serial I/O on guests, which prevents the described problem from occurring.
    last seen 2019-02-21
    modified 2018-12-27
    plugin id 100779
    published 2017-06-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100779
    title Scientific Linux Security Update : qemu-kvm on SL7.x x86_64
  • NASL family Huawei Local Security Checks
    NASL id EULEROS_SA-2017-1119.NASL
    description According to the versions of the qemu-kvm packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) - An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-14
    plugin id 101851
    published 2017-07-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101851
    title EulerOS 2.0 SP2 : qemu-kvm (EulerOS-SA-2017-1119)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-939.NASL
    description Multiple vulnerabilities have been discovered in qemu-kvm, a full virtualization solution on x86 hardware based on Quick Emulator(Qemu). The Common Vulnerabilities and Exposures project identifies the following problems : CVE-2016-9603 qemu-kvm built with the Cirrus CLGD 54xx VGA Emulator and the VNC display driver support is vulnerable to a heap buffer overflow issue. It could occur when Vnc client attempts to update its display after a vga operation is performed by a guest. A privileged user/process inside guest could use this flaw to crash the Qemu process resulting in DoS OR potentially leverage it to execute arbitrary code on the host with privileges of the Qemu process. CVE-2017-7718 qemu-kvm built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt functions cirrus_bitblt_rop_fwd_transp_ and/or cirrus_bitblt_rop_fwd_. A privileged user inside guest could use this flaw to crash the Qemu process resulting in DoS. CVE-2017-7980 qemu-kvm built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds r/w access issues. It could occur while copying VGA data via various bitblt functions. A privileged user inside guest could 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. For Debian 7 'Wheezy', these problems have been fixed in version 1.1.2+dfsg-6+deb7u21. We recommend that you upgrade your qemu-kvm 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.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 100133
    published 2017-05-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100133
    title Debian DLA-939-1 : qemu-kvm security update
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3289-1.NASL
    description 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-2017-7377, CVE-2017-8086) 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-2017-7718) Li Qiang and Jiangxin 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-2017-7980) Jiang Xin discovered that QEMU incorrectly handled the audio subsystem. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-8309) Jiang Xin discovered that QEMU incorrectly handled the input subsystem. 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, Ubuntu 16.10 and Ubuntu 17.04. (CVE-2017-8379). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 100250
    published 2017-05-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100250
    title Ubuntu 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : qemu vulnerabilities (USN-3289-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-2946-1.NASL
    description This update for qemu fixes several issues. These security issues were fixed : - CVE-2017-10911: The make_response function in the Linux kernel allowed guest OS users to obtain sensitive information from host OS (or other guest OS) kernel memory by leveraging the copying of uninitialized padding fields in Xen block-interface response structures (bsc#1057378). - CVE-2017-12809: The IDE disk and CD/DVD-ROM Emulator support allowed local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive (bsc#1054724). - 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-2017-15038: 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-2017-14167: 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-2017-11434: 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-2017-11334: 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-2017-13672: 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-2017-5973: 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-2017-5987: The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c allowed local OS guest privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors involving the transfer mode register during multi block transfer (bsc#1025311) - 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-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-2017-7718: 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-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036211) - 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-2017-9374: Missing free of 's->ipacket', causes a host memory leak, allowing for DoS (bsc#1043073) - 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-2017-9330: 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-2017-8379: Memory leak in the keyboard input event handlers support allowed local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events (bsc#1037334) - 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-2017-8380: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to an out-of-bounds read access issue which allowed a privileged user inside guest to read host memory resulting in DoS (bsc#1037336) - 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-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-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-2017-9503: 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) - 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-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-2017-7377: The v9fs_create and v9fs_lcreate functions in hw/9pfs/9p.c allowed local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid (bsc#1032075) - 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-2017-7471: 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-2016-6835: Buffer overflow in the VMWARE VMXNET3 NIC device support, causing an OOB read access (bsc#994605) - CVE-2016-6834: A infinite loop during packet fragmentation in the VMWARE VMXNET3 NIC device support allowed privileged user inside guest to crash the Qemu instance resulting in DoS (bsc#994418) - 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.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 104471
    published 2017-11-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104471
    title SUSE SLES12 Security Update : qemu (SUSE-SU-2017:2946-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-3084-1.NASL
    description 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.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 104780
    published 2017-11-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104780
    title SUSE SLES11 Security Update : kvm (SUSE-SU-2017:3084-1)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2018-0238.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - qemu-kvm-i386-define-the-ssbd-CPUID-feature-bit-CVE-2018 -3639.patch - qemu-kvm-i386-Define-the-Virt-SSBD-MSR-and-handling-of-i t-CVE.patch - qemu-kvm-i386-define-the-AMD-virt-ssbd-CPUID-feature-bit -CVE-.patch - Resolves: bz#1574074 (CVE-2018-3639 qemu-kvm: hw: cpu: speculative store bypass [rhel-6.10.z]) - kvm-vga-add-share_surface-flag.patch [bz#1553674] - kvm-vga-add-sanity-checks.patch [bz#1553674] - Resolves: bz#1553674 (CVE-2018-7858 qemu-kvm: Qemu: cirrus: OOB access when updating vga display [rhel-6]) - kvm-target-i386-add-support-for-SPEC_CTRL-MSR.patch [bz#1525939 bz#1528024] - kvm-target-i386-cpu-add-new-CPUID-bits-for-indirect-bran .patch - kvm-target-i386-cpu-add-new-CPU-models-for-indirect-bran .patch - kvm-cirrus-fix-oob-access-in-mode4and5-write-functions.p atch [bz#1501298] - kvm-vga-stop-passing-pointers-to-vga_draw_line-functions .patch - kvm-vga-check-the-validation-of-memory-addr-when-draw-te .patch - Resolves: bz#1486641 (CVE-2017-13672 qemu-kvm-rhev: Qemu: vga: OOB read access during display update [rhel-6.10]) - Resolves: bz#1501298 (CVE-2017-15289 qemu-kvm: Qemu: cirrus: OOB access issue in mode4and5 write functions [rhel-6.10]) - Resolves: bz#1525939 (CVE-2017-5715 qemu-kvm: hw: cpu: speculative execution branch target injection [rhel-6.10]) - Resolves: bz#1528024 (CVE-2017-5715 qemu-kvm-rhev: hw: cpu: speculative execution branch target injection [rhel-6.10]) - Resolves: bz#1534692 (CVE-2018-5683 qemu-kvm: Qemu: Out-of-bounds read in vga_draw_text routine [rhel-6.10]) - Resolves: bz#1549152 (qemu-kvm-rhev: remove unused patch file [rhel-6.10]) - kvm-vns-tls-don-t-use-depricated-gnutls-functions.patch [bz#1428750] - kvm-vnc-apply-display-size-limits.patch [bz#1430616 bz#1430617] - kvm-fix-cirrus_vga-fix-OOB-read-case-qemu-Segmentation-f .patch - kvm-cirrus-vnc-zap-bitblit-support-from-console-code.pat ch [bz#1443448 bz#1443450 bz#1447542 bz#1447545] - kvm-cirrus-avoid-write-only-variables.patch [bz#1444378 bz#1444380] - kvm-cirrus-stop-passing-around-dst-pointers-in-the-blitt .patch - kvm-cirrus-stop-passing-around-src-pointers-in-the-blitt .patch - kvm-cirrus-fix-off-by-one-in-cirrus_bitblt_rop_bkwd_tran .patch - kvm-cirrus-fix-PUTPIXEL-macro.patch [bz#1444378 bz#1444380] - Resolves: bz#1428750 (Fails to build in brew) - Resolves: bz#1430616 (CVE-2017-2633 qemu-kvm: Qemu: VNC: memory corruption due to unchecked resolution limit [rhel-6.10]) - Resolves: bz#1430617 (CVE-2017-2633 qemu-kvm-rhev: Qemu: VNC: memory corruption due to unchecked resolution limit [rhel-6.10]) - Resolves: bz#1443448 (CVE-2017-7718 qemu-kvm: Qemu: display: cirrus: OOB read access issue [rhel-6.10]) - Resolves: bz#1443450 (CVE-2017-7718 qemu-kvm-rhev: Qemu: display: cirrus: OOB read access issue [rhel-6.10]) - Resolves: bz#1444378 (CVE-2017-7980 qemu-kvm: Qemu: display: cirrus: OOB r/w access issues in bitblt routines [rhel-6.10]) - Resolves: bz#1444380 (CVE-2017-7980 qemu-kvm-rhev: Qemu: display: cirrus: OOB r/w access issues in bitblt routines [rhel-6.10]) - Resolves: bz#1447542 (CVE-2016-9603 qemu-kvm: Qemu: cirrus: heap buffer overflow via vnc connection [rhel-6.10]) - Resolves: bz#1447545 (CVE-2016-9603 qemu-kvm-rhev: Qemu: cirrus: heap buffer overflow via vnc connection [rhel-6.10])
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 111023
    published 2018-07-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=111023
    title OracleVM 3.4 : qemu-kvm (OVMSA-2018-0238) (Spectre)
  • NASL family Huawei Local Security Checks
    NASL id EULEROS_SA-2017-1118.NASL
    description According to the versions of the qemu-kvm package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) - An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-14
    plugin id 101850
    published 2017-07-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101850
    title EulerOS 2.0 SP1 : qemu-kvm (EulerOS-SA-2017-1118)
  • NASL family Virtuozzo Local Security Checks
    NASL id VIRTUOZZO_VZLSA-2017-1430.NASL
    description An update for qemu-kvm is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm package provides the user-space component for running virtual machines that use KVM. Security Fix(es) : * An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc) for reporting CVE-2017-7718. Bug Fix(es) : * Previously, guest virtual machines in some cases became unresponsive when the 'pty' back end of a serial device performed an irregular I/O communication. This update improves the handling of serial I/O on guests, which prevents the described problem from occurring. (BZ#1452332) Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-20
    plugin id 101479
    published 2017-07-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101479
    title Virtuozzo 7 : qemu-img / qemu-kvm / qemu-kvm-common / etc (VZLSA-2017-1430)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-1145-1.NASL
    description This update for xen fixes several issues. These security issues were fixed : - A malicious 64-bit PV guest may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks by placing a IRET hypercall in the middle of a multicall batch (XSA-213, bsc#1034843) - A malicious pair of guests may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks because of a missing check when transfering pages via GNTTABOP_transfer (XSA-214, bsc#1034844). - 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#1034994). - 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#1028655) 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.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 99960
    published 2017-05-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99960
    title SUSE SLES11 Security Update : xen (SUSE-SU-2017:1145-1)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2017-563.NASL
    description This update for xen fixes several issues. These security issues were fixed : - A malicious 64-bit PV guest may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks by placing a IRET hypercall in the middle of a multicall batch (XSA-213, bsc#1034843) - A malicious pair of guests may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks because of a missing check when transfering pages via GNTTABOP_transfer (XSA-214, bsc#1034844). - 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#1034994). - 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#1028655) These non-security issues were fixed : - bsc#1029827: Additional xenstore patch - bsc#1036146: Xen VM dumped core to wrong path - bsc#1022703: Prevent Xen HVM guest with OVMF to hang with unattached CDRom This update was imported from the SUSE:SLE-12-SP2:Update update project.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 100086
    published 2017-05-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100086
    title openSUSE Security Update : xen (openSUSE-2017-563)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-1497.NASL
    description 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.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 117351
    published 2018-09-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=117351
    title Debian DLA-1497-1 : qemu security update (Spectre)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2017-1430.NASL
    description An update for qemu-kvm is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm package provides the user-space component for running virtual machines that use KVM. Security Fix(es) : * An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc) for reporting CVE-2017-7718. Bug Fix(es) : * Previously, guest virtual machines in some cases became unresponsive when the 'pty' back end of a serial device performed an irregular I/O communication. This update improves the handling of serial I/O on guests, which prevents the described problem from occurring. (BZ#1452332)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 100770
    published 2017-06-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100770
    title CentOS 7 : qemu-kvm (CESA-2017:1430)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2017-F336BA205D.NASL
    description Qemu: serial: host memory leakage 16550A UART emulation [CVE-2017-5579] (#1416162) Qemu: display: cirrus: OOB read access issue [CVE-2017-7718] (#1443444) xen: various flaws (#1481765) multiple problems with transitive grants [XSA-226, CVE-2017-12135] x86: PV privilege escalation via map_grant_ref [XSA-227, CVE-2017-12137] grant_table: Race conditions with maptrack free list handling [XSA-228, CVE-2017-12136] grant_table: possibly premature clearing of GTF_writing / GTF_reading [XSA-230, CVE-2017-12855] 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.
    last seen 2019-02-21
    modified 2018-02-02
    plugin id 102686
    published 2017-08-23
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=102686
    title Fedora 26 : xen (2017-f336ba205d)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2017-F941184DB1.NASL
    description - CVE-2017-7718: cirrus: OOB read access issue (bz #1443443) - CVE-2016-9603: cirrus: heap buffer overflow via vnc connection (bz #1432040) - CVE-2017-7377: 9pfs: fix file descriptor leak (bz #1437872) - CVE-2017-7980: cirrus: OOB r/w access issues in bitblt (bz #1444372) - CVE-2017-8112: vmw_pvscsi: infinite loop in pvscsi_log2 (bz #1445622) - CVE-2017-8309: audio: host memory lekage via capture buffer (bz #1446520) - CVE-2017-8379: input: host memory lekage via keyboard events (bz #1446560) - CVE-2017-8380: scsi: megasas: out-of-bounds read in megasas_mmio_write (bz #1446578) - CVE-2017-9060: virtio-gpu: host memory leakage in Virtio GPU device (bz #1452598) - CVE-2017-9310: net: infinite loop in e1000e NIC emulation (bz #1452623) - CVE-2017-9330: usb: ohci: infinite loop due to incorrect return value (bz #1457699) - CVE-2017-9374: usb: ehci host memory leakage during hotunplug (bz #1459137) - CVE-2017-10806: usb-redirect: stack-based buffer overflow in debug logging (bz #1468497) 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.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 102008
    published 2017-07-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=102008
    title Fedora 25 : 2:qemu (2017-f941184db1)
  • NASL family Virtuozzo Local Security Checks
    NASL id VIRTUOZZO_VZLSA-2017-1206.NASL
    description An update for qemu-kvm is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm package provides the user-space component for running virtual machines that use KVM. Security Fix(es) : * A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603) * An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) * An out-of-bounds memory access issue was found in QEMU's VNC display driver support. The vulnerability could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user/process inside a guest could use this flaw to crash the QEMU process, resulting in a denial of service. (CVE-2017-2633) * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc.) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc.) for reporting CVE-2017-7718. Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-20
    plugin id 101463
    published 2017-07-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101463
    title Virtuozzo 6 : qemu-guest-agent / qemu-img / qemu-kvm / etc (VZLSA-2017-1206)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-1205.NASL
    description An update for qemu-kvm-rhev is now available for RHEV 3.X Hypervisor and Agents for RHEL-6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 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) : * A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603) * Quick Emulator (QEMU) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds r/w access issue. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside the guest could use this flaw to crash the QEMU process (DoS) or potentially execute arbitrary code on a host with privileges of the host's QEMU process. (CVE-2017-7980) * Quick Emulator (QEMU) built with the VNC display driver support is vulnerable to an out-of-bounds memory access issue. The vulnerability could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user/process inside the guest could use this flaw to crash the QEMU process, resulting in a DoS. (CVE-2017-2633) * Quick Emulator (QEMU) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in DoS. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc.) Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc.) for reporting CVE-2017-7718.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 100142
    published 2017-05-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100142
    title RHEL 6 : qemu-kvm-rhev (RHSA-2017:1205)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0101.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - kvm-cirrus-avoid-write-only-variables.patch [bz#1444377 bz#1444379] - kvm-cirrus-stop-passing-around-dst-pointers-in-the-blitt .patch - kvm-cirrus-stop-passing-around-src-pointers-in-the-blitt .patch - kvm-cirrus-fix-off-by-one-in-cirrus_bitblt_rop_bkwd_tran .patch - kvm-cirrus-fix-PUTPIXEL-macro.patch [bz#1444377 bz#1444379] - Resolves: bz#1444377 (CVE-2017-7980 qemu-kvm: Qemu: display: cirrus: OOB r/w access issues in bitblt routines [rhel-6.9.z]) - Resolves: bz#1444379 (CVE-2017-7980 qemu-kvm-rhev: Qemu: display: cirrus: OOB r/w access issues in bitblt routines [rhel-6.9.z]) - kvm-fix-cirrus_vga-fix-OOB-read-case-qemu-Segmentation-f .patch - kvm-cirrus-vnc-zap-bitblit-support-from-console-code.pat ch [bz#1443447 bz#1443449] - Resolves: bz#1443447 (CVE-2017-7718 qemu-kvm: Qemu: display: cirrus: OOB read access issue [rhel-6.9.z]) - Resolves: bz#1443449 (CVE-2017-7718 qemu-kvm-rhev: Qemu: display: cirrus: OOB read access issue [rhel-6.9.z]) - Resolves: bz#1447544 (CVE-2016-9603 qemu-kvm-rhev: Qemu: cirrus: heap buffer overflow via vnc connection [rhel-6.9.z]) - Resolves: bz#1447540 (CVE-2016-9603 qemu-kvm: Qemu: cirrus: heap buffer overflow via vnc connection [rhel-6.9.z]) - kvm-vns-tls-don-t-use-depricated-gnutls-functions.patch [bz#1428750] - kvm-vnc-apply-display-size-limits.patch [bz#1400438 bz#1425943] - Resolves: bz#1400438 (qemu-kvm coredump in vnc_refresh_server_surface [rhel-6.9.z]) - Resolves: bz#1425943 (CVE-2017-2633 qemu-kvm-rhev: Qemu: VNC: memory corruption due to unchecked resolution limit [rhel-6.9.z]) - Resolves: bz#1428750 (Fails to build in brew)
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 100115
    published 2017-05-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100115
    title OracleVM 3.4 : qemu-kvm (OVMSA-2017-0101)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-1148-1.NASL
    description This update for xen fixes several issues. These security issues were fixed : - 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#1035483). - A malicious 64-bit PV guest may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks by placing a IRET hypercall in the middle of a multicall batch (XSA-213, bsc#1034843) - A malicious pair of guests may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks because of a missing check when transfering pages via GNTTABOP_transfer (XSA-214, bsc#1034844). - Incorrect checks when handling exceptions allowed a malicious or buggy 64-bit PV guest to modify part of a physical memory page not belonging to it, potentially allowing for all of privilege escalation, host or other guest crashes, and information leaks (XSA-215, bsc#1034845) - 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#1034994). 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.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 99963
    published 2017-05-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99963
    title SUSE SLES12 Security Update : xen (SUSE-SU-2017:1148-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-1430.NASL
    description From Red Hat Security Advisory 2017:1430 : An update for qemu-kvm is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm package provides the user-space component for running virtual machines that use KVM. Security Fix(es) : * An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc) for reporting CVE-2017-7718. Bug Fix(es) : * Previously, guest virtual machines in some cases became unresponsive when the 'pty' back end of a serial device performed an irregular I/O communication. This update improves the handling of serial I/O on guests, which prevents the described problem from occurring. (BZ#1452332)
    last seen 2019-02-21
    modified 2018-07-25
    plugin id 100776
    published 2017-06-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100776
    title Oracle Linux 7 : qemu-kvm (ELSA-2017-1430)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-1147-1.NASL
    description This update for xen fixes several issues. These security issues were fixed : - A malicious 64-bit PV guest may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks by placing a IRET hypercall in the middle of a multicall batch (XSA-213, bsc#1034843) - A malicious pair of guests may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks because of a missing check when transfering pages via GNTTABOP_transfer (XSA-214, bsc#1034844). - 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#1034994). - 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#1028655) 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.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 99962
    published 2017-05-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99962
    title SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2017:1147-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-1143-1.NASL
    description This update for xen fixes several issues. These security issues were fixed : - A malicious 64-bit PV guest may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks by placing a IRET hypercall in the middle of a multicall batch (XSA-213, bsc#1034843) - A malicious pair of guests may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks because of a missing check when transfering pages via GNTTABOP_transfer (XSA-214, bsc#1034844). - 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#1034994). - 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#1028655) 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.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 99959
    published 2017-05-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99959
    title SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2017:1143-1)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-1430.NASL
    description An update for qemu-kvm is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm package provides the user-space component for running virtual machines that use KVM. Security Fix(es) : * An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc) for reporting CVE-2017-7718. Bug Fix(es) : * Previously, guest virtual machines in some cases became unresponsive when the 'pty' back end of a serial device performed an irregular I/O communication. This update improves the handling of serial I/O on guests, which prevents the described problem from occurring. (BZ#1452332)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 100777
    published 2017-06-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100777
    title RHEL 7 : qemu-kvm (RHSA-2017:1430)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2017-822.NASL
    description This update for qemu fixes several issues. These security issues were fixed : - 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-2017-8379: Memory leak in the keyboard input event handlers support allowed local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events (bsc#1037334). - 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-2017-7493: 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-2017-7377: The v9fs_create and v9fs_lcreate functions in hw/9pfs/9p.c allowed local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid (bsc#1032075). - 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-2017-5973: 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-2017-5987: The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c allowed local OS guest privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors involving the transfer mode register during multi block transfer (bsc#1025311). - CVE-2017-6505: The ohci_service_ed_list function in hw/usb/hcd-ohci.c 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-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-2017-7718: 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-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036211). - 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-2017-9374: Missing free of 's->ipacket', causes a host memory leak, allowing for DoS (bsc#1043073). - 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-2017-8380: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to an out-of-bounds read access issue which allowed a privileged user inside guest to read host memory resulting in DoS (bsc#1037336). - 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-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). - Fix privilege escalation in TCG mode of QEMU. This is not considered a security issue by the upstream project, but is included as additional hardening (bsc#1030624) - Fix potential DoS in virtfs - 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, bsc#1016503) - 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, bsc#1016504) - 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-2017-9503: 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). This non-security issue was fixed : - Enable MONITOR/MWAIT support for guests (bsc#1031142) This update was imported from the SUSE:SLE-12-SP2:Update update project.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 101758
    published 2017-07-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101758
    title openSUSE Security Update : qemu (openSUSE-2017-822)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20170509_QEMU_KVM_ON_SL6_X.NASL
    description Security Fix(es) : - A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603) - An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) - An out-of-bounds memory access issue was found in QEMU's VNC display driver support. The vulnerability could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user/process inside a guest could use this flaw to crash the QEMU process, resulting in a denial of service. (CVE-2017-2633) - An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718)
    last seen 2019-02-21
    modified 2018-12-27
    plugin id 100097
    published 2017-05-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100097
    title Scientific Linux Security Update : qemu-kvm on SL6.x i386/x86_64
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2017-ED735463E3.NASL
    description Qemu: usb: ohci: infinite loop due to incorrect return value [CVE-2017-9330] (#1457698) Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort [CVE-2017-10664] (#1466466) revised full fix for XSA-226 (regressed 32-bit Dom0 or backend domains) ---- full fix for XSA-226, replacing workaround drop conflict of xendomain and libvirtd as can cause problems (#1398590) add-to-physmap error paths fail to release lock on ARM [XSA-235] (#1484476) Qemu: audio: host memory leakage via capture buffer [CVE-2017-8309] (#1446521) Qemu: input: host memory leakage via keyboard events [CVE-2017-8379] (#1446561) ---- Qemu: serial: host memory leakage 16550A UART emulation [CVE-2017-5579] (#1416162) Qemu: display: cirrus: OOB read access issue [CVE-2017-7718] (#1443444) xen: various flaws (#1481765) multiple problems with transitive grants [XSA-226, CVE-2017-12135] x86: PV privilege escalation via map_grant_ref [XSA-227, CVE-2017-12137] grant_table: Race conditions with maptrack free list handling [XSA-228, CVE-2017-12136] grant_table: possibly premature clearing of GTF_writing / GTF_reading [XSA-230, CVE-2017-12855] 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.
    last seen 2019-02-21
    modified 2018-02-02
    plugin id 103342
    published 2017-09-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=103342
    title Fedora 25 : xen (2017-ed735463e3)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-1206.NASL
    description An update for qemu-kvm is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm package provides the user-space component for running virtual machines that use KVM. Security Fix(es) : * A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603) * An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) * An out-of-bounds memory access issue was found in QEMU's VNC display driver support. The vulnerability could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user/process inside a guest could use this flaw to crash the QEMU process, resulting in a denial of service. (CVE-2017-2633) * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc.) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc.) for reporting CVE-2017-7718.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 100092
    published 2017-05-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100092
    title RHEL 6 : qemu-kvm (RHSA-2017:1206)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-2963-1.NASL
    description This update for kvm fixes several issues. These security issues were fixed : - 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) - 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.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 104494
    published 2017-11-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104494
    title SUSE SLES11 Security Update : kvm (SUSE-SU-2017:2963-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-1206.NASL
    description From Red Hat Security Advisory 2017:1206 : An update for qemu-kvm is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm package provides the user-space component for running virtual machines that use KVM. Security Fix(es) : * A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603) * An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) * An out-of-bounds memory access issue was found in QEMU's VNC display driver support. The vulnerability could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user/process inside a guest could use this flaw to crash the QEMU process, resulting in a denial of service. (CVE-2017-2633) * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc.) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc.) for reporting CVE-2017-7718.
    last seen 2019-02-21
    modified 2018-09-07
    plugin id 100088
    published 2017-05-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100088
    title Oracle Linux 6 : qemu-kvm (ELSA-2017-1206)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-2969-1.NASL
    description This update for qemu fixes several issues. These security issues were fixed : - 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-2017-2633: The VNC display driver support was vulnerable to an out-of-bounds memory access issue. A user/process inside guest could use this flaw to cause DoS (bsc#1026612) - 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-2017-14167: 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-2017-11434: 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-2017-11334: 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-2017-13672: 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-2017-5973: 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-2017-5987: The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c allowed local OS guest privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors involving the transfer mode register during multi block transfer (bsc#1025311) - 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-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-2017-7718: 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-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036211) - 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-2017-9373: 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-2017-9330: 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-2017-8309: 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-2017-7493: 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-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-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-2017-9503: 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) - 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-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-2017-7377: The v9fs_create and v9fs_lcreate functions in hw/9pfs/9p.c allowed local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid (bsc#1032075) - 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-2017-7471: 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-2016-6834: A infinite loop during packet fragmentation in the VMWARE VMXNET3 NIC device support allowed privileged user inside guest to crash the Qemu instance resulting in DoS (bsc#994418) - CVE-2016-6835: Buffer overflow in the VMWARE VMXNET3 NIC device support, causing an OOB read access (bsc#994605) - 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.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 104495
    published 2017-11-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104495
    title SUSE SLES12 Security Update : qemu (SUSE-SU-2017:2969-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-1774-1.NASL
    description This update for qemu fixes several issues. These security issues were fixed : - 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-2017-8379: Memory leak in the keyboard input event handlers support allowed local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events (bsc#1037334). - 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-2017-7493: 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-2017-7377: The v9fs_create and v9fs_lcreate functions in hw/9pfs/9p.c allowed local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid (bsc#1032075). - 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-2017-5973: 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-2017-5987: The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c allowed local OS guest privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors involving the transfer mode register during multi block transfer (bsc#1025311). - CVE-2017-6505: The ohci_service_ed_list function in hw/usb/hcd-ohci.c 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-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-2017-7718: 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-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036211). - 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-2017-9374: Missing free of 's->ipacket', causes a host memory leak, allowing for DoS (bsc#1043073). - 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-2017-8380: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to an out-of-bounds read access issue which allowed a privileged user inside guest to read host memory resulting in DoS (bsc#1037336). - 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-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). - Fix privilege escalation in TCG mode of QEMU. This is not considered a security issue by the upstream project, but is included as additional hardening (bsc#1030624) - Fix potential DoS in virtfs - 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, bsc#1016503) - 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, bsc#1016504) - 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-2017-9503: 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). 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.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 101227
    published 2017-07-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101227
    title SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:1774-1)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2017-1206.NASL
    description An update for qemu-kvm is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm package provides the user-space component for running virtual machines that use KVM. Security Fix(es) : * A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603) * An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) * An out-of-bounds memory access issue was found in QEMU's VNC display driver support. The vulnerability could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user/process inside a guest could use this flaw to crash the QEMU process, resulting in a denial of service. (CVE-2017-2633) * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc.) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc.) for reporting CVE-2017-7718.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 100068
    published 2017-05-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100068
    title CentOS 6 : qemu-kvm (CESA-2017:1206)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2017-1146-1.NASL
    description This update for xen fixes several security issues : - A malicious 64-bit PV guest may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks by placing a IRET hypercall in the middle of a multicall batch (XSA-213, bsc#1034843) - A malicious pair of guests may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks because of a missing check when transfering pages via GNTTABOP_transfer (XSA-214, bsc#1034844). - 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#1034994). - 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#1028655) 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.
    last seen 2019-02-21
    modified 2018-11-30
    plugin id 99961
    published 2017-05-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99961
    title SUSE SLES11 Security Update : xen (SUSE-SU-2017:1146-1)
redhat via4
advisories
  • rhsa
    id RHSA-2017:0980
  • rhsa
    id RHSA-2017:0981
  • rhsa
    id RHSA-2017:0982
  • rhsa
    id RHSA-2017:0983
  • rhsa
    id RHSA-2017:0984
  • rhsa
    id RHSA-2017:0988
  • rhsa
    id RHSA-2017:1205
  • rhsa
    id RHSA-2017:1206
  • rhsa
    id RHSA-2017:1430
  • rhsa
    id RHSA-2017:1431
  • rhsa
    id RHSA-2017:1441
rpms
  • qemu-guest-agent-2:0.12.1.2-2.503.el6_9.3
  • qemu-img-2:0.12.1.2-2.503.el6_9.3
  • qemu-kvm-2:0.12.1.2-2.503.el6_9.3
  • qemu-kvm-tools-2:0.12.1.2-2.503.el6_9.3
  • qemu-img-10:1.5.3-126.el7_3.9
  • qemu-kvm-10:1.5.3-126.el7_3.9
  • qemu-kvm-common-10:1.5.3-126.el7_3.9
  • qemu-kvm-tools-10:1.5.3-126.el7_3.9
refmap via4
bid 97957
confirm
gentoo GLSA-201706-03
mlist
  • [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update
  • [oss-security] 20170419 CVE-2017-7718 Qemu: display: cirrus: OOB read access issue
Last major update 04-05-2017 - 21:29
Published 20-04-2017 - 13:59
Last modified 07-09-2018 - 06:29
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