ID CVE-2017-7493
Summary 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.
References
Vulnerable Configurations
  • QEMU
    cpe:2.3:a:qemu:qemu
CVSS
Base: 4.6
Impact:
Exploitability:
CWE CWE-284
CAPEC
  • Embedding Scripts within Scripts
    An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
  • Signature Spoofing by Key Theft
    An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
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 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 Debian Local Security Checks
    NASL id DEBIAN_DLA-965.NASL
    description Several vulnerabilities were discovered in qemu-kvm, a full virtualization solution for Linux hosts on x86 hardware with x86 guests based on the Quick Emulator(Qemu). 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-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 100514
    published 2017-05-31
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100514
    title Debian DLA-965-1 : qemu-kvm security update
  • 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 Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3414-2.NASL
    description USN-3414-1 fixed vulnerabilities in QEMU. The patch backport for CVE-2017-9375 was incomplete and caused a regression in the USB xHCI controller emulation support. This update fixes the problem. We apologize for the inconvenience. Leo Gaspard discovered that QEMU incorrectly handled VirtFS access control. A guest attacker could use this issue to elevate privileges inside the guest. (CVE-2017-7493) Li Qiang discovered that QEMU incorrectly handled VMware PVSCSI emulation. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources or crash, resulting in a denial of service. (CVE-2017-8112) It was discovered that QEMU incorrectly handled MegaRAID SAS 8708EM2 Host Bus Adapter emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly to obtain sensitive host memory. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.04. (CVE-2017-8380) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to consume resources and crash, resulting in a denial of service. This issue only affected Ubuntu 17.04. (CVE-2017-9060) Li Qiang discovered that QEMU incorrectly handled the e1000e device. A privileged attacker inside the guest could use this issue to cause QEMU to hang, resulting in a denial of service. This issue only affected Ubuntu 17.04. (CVE-2017-9310) Li Qiang discovered that QEMU incorrectly handled USB OHCI emulation support. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-9330) Li Qiang discovered that QEMU incorrectly handled IDE AHCI emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources and crash, resulting in a denial of service. (CVE-2017-9373) Li Qiang discovered that QEMU incorrectly handled USB EHCI emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources and crash, resulting in a denial of service. (CVE-2017-9374) Li Qiang discovered that QEMU incorrectly handled USB xHCI emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to hang, resulting in a denial of service. (CVE-2017-9375) Zhangyanyu discovered that QEMU incorrectly handled MegaRAID SAS 8708EM2 Host Bus Adapter emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-9503) It was discovered that the QEMU qemu-nbd server incorrectly handled initialization. A remote attacker could use this issue to cause the server to crash, resulting in a denial of service. (CVE-2017-9524) It was discovered that the QEMU qemu-nbd server incorrectly handled signals. A remote attacker could use this issue to cause the server to crash, resulting in a denial of service. (CVE-2017-10664) Li Qiang discovered that the QEMU USB redirector incorrectly handled logging debug messages. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-10806) Anthony Perard discovered that QEMU incorrectly handled Xen block-interface responses. An attacker inside the guest could use this issue to cause QEMU to leak contents of host memory. (CVE-2017-10911) Reno Robert discovered that QEMU incorrectly handled certain DHCP options strings. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-11434) Ryan Salsamendi discovered that QEMU incorrectly handled empty CDROM device drives. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.04. (CVE-2017-12809). 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 103372
    published 2017-09-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=103372
    title Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : qemu regression (USN-3414-2)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3414-1.NASL
    description Leo Gaspard discovered that QEMU incorrectly handled VirtFS access control. A guest attacker could use this issue to elevate privileges inside the guest. (CVE-2017-7493) Li Qiang discovered that QEMU incorrectly handled VMware PVSCSI emulation. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources or crash, resulting in a denial of service. (CVE-2017-8112) It was discovered that QEMU incorrectly handled MegaRAID SAS 8708EM2 Host Bus Adapter emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly to obtain sensitive host memory. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.04. (CVE-2017-8380) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to consume resources and crash, resulting in a denial of service. This issue only affected Ubuntu 17.04. (CVE-2017-9060) Li Qiang discovered that QEMU incorrectly handled the e1000e device. A privileged attacker inside the guest could use this issue to cause QEMU to hang, resulting in a denial of service. This issue only affected Ubuntu 17.04. (CVE-2017-9310) Li Qiang discovered that QEMU incorrectly handled USB OHCI emulation support. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-9330) Li Qiang discovered that QEMU incorrectly handled IDE AHCI emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources and crash, resulting in a denial of service. (CVE-2017-9373) Li Qiang discovered that QEMU incorrectly handled USB EHCI emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources and crash, resulting in a denial of service. (CVE-2017-9374) Li Qiang discovered that QEMU incorrectly handled USB xHCI emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to hang, resulting in a denial of service. (CVE-2017-9375) Zhangyanyu discovered that QEMU incorrectly handled MegaRAID SAS 8708EM2 Host Bus Adapter emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-9503) It was discovered that the QEMU qemu-nbd server incorrectly handled initialization. A remote attacker could use this issue to cause the server to crash, resulting in a denial of service. (CVE-2017-9524) It was discovered that the QEMU qemu-nbd server incorrectly handled signals. A remote attacker could use this issue to cause the server to crash, resulting in a denial of service. (CVE-2017-10664) Li Qiang discovered that the QEMU USB redirector incorrectly handled logging debug messages. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-10806) Anthony Perard discovered that QEMU incorrectly handled Xen block-interface responses. An attacker inside the guest could use this issue to cause QEMU to leak contents of host memory. (CVE-2017-10911) Reno Robert discovered that QEMU incorrectly handled certain DHCP options strings. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-11434) Ryan Salsamendi discovered that QEMU incorrectly handled empty CDROM device drives. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.04. (CVE-2017-12809). 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 103217
    published 2017-09-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=103217
    title Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : qemu vulnerabilities (USN-3414-1)
  • 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 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 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 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)
refmap via4
bid 98574
confirm https://bugzilla.redhat.com/show_bug.cgi?id=1451709
gentoo GLSA-201706-03
mlist
  • [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update
  • [oss-security] 20170517 CVE-2017-7493 Qemu: 9pfs: guest privilege escalation in virtfs mapped-file mode
  • [qemu-devel] 20170516 [PULL] 9pfs: local: forbid client access to metadata (CVE-2017-7493)
Last major update 17-05-2017 - 11:29
Published 17-05-2017 - 11:29
Last modified 07-09-2018 - 06:29
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