CVE-2016-9102

Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number.

Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number.

Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number.

These are all security issues fixed in the qemu-6.1.0-32.1 package on the GA media of openSUSE Tumbleweed.

This update for kvm fixes the following issues:

• Address various security/stability issues

• Fix OOB access in xlnx.xpx-ethernetlite emulation (CVE-2016-7161 bsc#1001151)
• Fix OOB access in VMware SVGA emulation (CVE-2016-7170 bsc#998516)
• Fix DOS in ColdFire Fast Ethernet Controller emulation (CVE-2016-7908 bsc#1002550)
• Fix DOS in USB xHCI emulation (CVE-2016-8576 bsc#1003878)
• Fix DOS in virtio-9pfs (CVE-2016-8578 bsc#1003894)
• Fix DOS in virtio-9pfs (CVE-2016-9105 bsc#1007494)
• Fix DOS in virtio-9pfs (CVE-2016-8577 bsc#1003893)
• Plug data leak in virtio-9pfs interface (CVE-2016-9103 bsc#1007454)
• Fix DOS in virtio-9pfs interface (CVE-2016-9102 bsc#1007450)
• Fix DOS in virtio-9pfs (CVE-2016-9106 bsc#1007495)
• Fix DOS in 16550A UART emulation (CVE-2016-8669 bsc#1004707)
• Fix DOS in PC-Net II emulation (CVE-2016-7909 bsc#1002557)
• Fix DOS in PRO100 emulation (CVE-2016-9101 bsc#1007391)
• Fix DOS in RTL8139 emulation (CVE-2016-8910 bsc#1006538)
• Fix DOS in Intel HDA controller emulation (CVE-2016-8909 bsc#1006536)
• Fix DOS in virtio-9pfs (CVE-2016-9104 bsc#1007493)
• Fix DOS in JAZZ RC4030 emulation (CVE-2016-8667 bsc#1004702)

• Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE11-SP4
• Remove semi-contradictory and now determined erroneous statement in kvm-supported.txt regarding not running ntp in kvm guest when kvm-clock is used. It is now recommended to use ntp in guest in this case.

This update for qemu fixes the following issues:

• Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE12
• Change package post script udevadm trigger calls to be device specific (bsc#1002116)
• Address various security/stability issues

• Fix OOB access in xlnx.xpx-ethernetlite emulation (CVE-2016-7161 bsc#1001151)
• Fix OOB access in VMware SVGA emulation (CVE-2016-7170 bsc#998516)
• Fix DOS in Vmware pv scsi interface (CVE-2016-7421 bsc#999661)
• Fix DOS in ColdFire Fast Ethernet Controller emulation (CVE-2016-7908 bsc#1002550)
• Fix DOS in USB xHCI emulation (CVE-2016-8576 bsc#1003878)
• Fix DOS in virtio-9pfs (CVE-2016-8578 bsc#1003894)
• Fix DOS in virtio-9pfs (CVE-2016-9105 bsc#1007494)
• Fix DOS in virtio-9pfs (CVE-2016-8577 bsc#1003893)
• Plug data leak in virtio-9pfs interface (CVE-2016-9103 bsc#1007454)
• Fix DOS in virtio-9pfs interface (CVE-2016-9102 bsc#1007450)
• Fix DOS in virtio-9pfs (CVE-2016-9106 bsc#1007495)
• Fix DOS in 16550A UART emulation (CVE-2016-8669 bsc#1004707)
• Fix DOS in PC-Net II emulation (CVE-2016-7909 bsc#1002557)
• Fix DOS in PRO100 emulation (CVE-2016-9101 bsc#1007391)
• Fix DOS in RTL8139 emulation (CVE-2016-8910 bsc#1006538)
• Fix DOS in Intel HDA controller emulation (CVE-2016-8909 bsc#1006536)
• Fix DOS in virtio-9pfs (CVE-2016-9104 bsc#1007493)
• Fix DOS in JAZZ RC4030 emulation (CVE-2016-8667 bsc#1004702)

This update for qemu fixes the following issues:

• Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE12-SP1
• Change package post script udevadm trigger calls to be device specific (bsc#1002116)
• Address various security/stability issues

• Fix OOB access in xlnx.xpx-ethernetlite emulation (CVE-2016-7161 bsc#1001151)
• Fix OOB access in VMware SVGA emulation (CVE-2016-7170 bsc#998516)
• Fix DOS in USB xHCI emulation (CVE-2016-7466 bsc#1000345)
• Fix DOS in Vmware pv scsi interface (CVE-2016-7421 bsc#999661)
• Fix DOS in ColdFire Fast Ethernet Controller emulation (CVE-2016-7908 bsc#1002550)
• Fix DOS in USB xHCI emulation (CVE-2016-8576 bsc#1003878)
• Fix DOS in virtio-9pfs (CVE-2016-8578 bsc#1003894)
• Fix DOS in virtio-9pfs (CVE-2016-9105 bsc#1007494)
• Fix DOS in virtio-9pfs (CVE-2016-8577 bsc#1003893)
• Plug data leak in virtio-9pfs interface (CVE-2016-9103 bsc#1007454)
• Fix DOS in virtio-9pfs interface (CVE-2016-9102 bsc#1007450)
• Fix DOS in virtio-9pfs (CVE-2016-9106 bsc#1007495)
• Fix DOS in 16550A UART emulation (CVE-2016-8669 bsc#1004707)
• Fix DOS in PC-Net II emulation (CVE-2016-7909 bsc#1002557)
• Fix DOS in PRO100 emulation (CVE-2016-9101 bsc#1007391)
• Fix DOS in RTL8139 emulation (CVE-2016-8910 bsc#1006538)
• Fix DOS in Intel HDA controller emulation (CVE-2016-8909 bsc#1006536)
• Fix DOS in virtio-9pfs (CVE-2016-9104 bsc#1007493)
• Fix DOS in JAZZ RC4030 emulation (CVE-2016-8667 bsc#1004702)

• Fix case of disk corruption with migration due to improper internal state tracking (bsc#996524)

qemu was updated to fix several issues.

These security issues were fixed:

• CVE-2016-9102: Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in allowed local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number (bsc#1014256).
• CVE-2016-9103: The v9fs_xattrcreate function in hw/9pfs/9p.c in allowed local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values writing to them (bsc#1007454).
• CVE-2016-9381: Improper processing of shared rings allowing guest administrators take over the qemu process, elevating their privilege to that of the qemu process (bsc#1009109)
• 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-2016-9845: The Virtio GPU Device emulator support as vulnerable to an information leakage issue while processing the 'VIRTIO_GPU_CMD_GET_CAPSET_INFO' command. A guest user/process could have used this flaw to leak contents of the host memory (bsc#1013767).
• CVE-2016-9846: The Virtio GPU Device emulator support was vulnerable to a memory leakage issue while updating the cursor data in update_cursor_data_virgl. A guest user/process could have used this flaw to leak host memory bytes, resulting in DoS for the host (bsc#1013764).
• 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-2016-9908: The Virtio GPU Device emulator support was vulnerable to an information leakage issue while processing the 'VIRTIO_GPU_CMD_GET_CAPSET' command. A guest user/process could have used this flaw to leak contents of the host memory (bsc#1014514).
• 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-2016-9912: The Virtio GPU Device emulator support was vulnerable to a memory leakage issue while destroying gpu resource object in 'virtio_gpu_resource_destroy'. A guest user/process could have used this flaw to leak host memory bytes, resulting in DoS for the host (bsc#1014112).
• CVE-2016-9913: VirtFS was vulnerable to memory leakage issue via its '9p-handle' or '9p-proxy' backend drivers. A privileged user inside guest could have used this flaw to leak host memory, thus affecting other services on the host and/or potentially crash the Qemu process on the host (bsc#1014110).

These non-security issues were fixed:

• Fixed uint64 property parsing and add regression tests (bsc#937125)
• Added a man page for kvm_stat
• Fix crash in vte (bsc#1008519)
• Various upstream commits targeted towards stable releases (bsc#1013341)

Zhenhao Hong discovered that QEMU incorrectly handled the Virtio module. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. (CVE-2016-5403)

Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network card emulation support. 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 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-6833, CVE-2016-6834, CVE-2016-6888)

Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network card 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 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. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-6835)

Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network card emulation support. A privileged attacker inside the guest could use this issue to possibly to obtain sensitive host memory. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-6836)

Felix Wilhelm discovered that QEMU incorrectly handled Plan 9 File System (9pfs) support. A privileged attacker inside the guest could use this issue to possibly to obtain sensitive host files. (CVE-2016-7116)

Li Qiang and Tom Victor discovered that QEMU incorrectly handled VMWARE PVSCSI paravirtual SCSI bus emulation support. 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 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7155)

Li Qiang discovered that QEMU incorrectly handled VMWARE PVSCSI paravirtual SCSI bus emulation support. 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 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7156, CVE-2016-7421)

Tom Victor discovered that QEMU incorrectly handled LSI SAS1068 host bus emulation support. 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 16.10. (CVE-2016-7157)

Hu Chaojian discovered that QEMU incorrectly handled xlnx.xps-ethernetlite 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 execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2016-7161)

Qinghao Tang and Li Qiang discovered that QEMU incorrectly handled the VMWare VGA module. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-7170)

Qinghao Tang and Zhenhao Hong discovered that QEMU incorrectly handled the Virtio module. 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 16.10. (CVE-2016-7422)

Li Qiang discovered that QEMU incorrectly handled LSI SAS1068 host bus emulation support. 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 16.10. (CVE-2016-7423)

Li Qiang discovered that QEMU incorrectly handled USB xHCI controller emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7466)

Li Qiang discovered that QEMU incorrectly handled ColdFire Fast Ethernet Controller…