openSUSE Security Update : qemu (openSUSE-2016-1504)

This script is Copyright (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote openSUSE host is missing a security update.

Description :

This update for qemu to version 2.6.2 fixes the several issues.

These security issues were fixed :

- CVE-2016-7161: Heap-based buffer overflow in the
.receive callback of xlnx.xps-ethernetlite in QEMU (aka
Quick Emulator) allowed attackers to execute arbitrary
code on the QEMU host via a large ethlite packet
(bsc#1001151).

- CVE-2016-7170: OOB stack memory access when processing
svga command (bsc#998516).

- CVE-2016-7466: xhci memory leakage during device unplug
(bsc#1000345).

- CVE-2016-7422: NULL pointer dereference in
virtqueu_map_desc (bsc#1000346).

- CVE-2016-7908: The mcf_fec_do_tx function in
hw/net/mcf_fec.c did not properly limit the buffer
descriptor count when transmitting packets, which
allowed local guest OS administrators to cause a denial
of service (infinite loop and QEMU process crash) via
vectors involving a buffer descriptor with a length of 0
and crafted values in bd.flags (bsc#1002550).

- CVE-2016-7995: Memory leak in ehci_process_itd
(bsc#1003612).

- CVE-2016-8576: The xhci_ring_fetch function in
hw/usb/hcd-xhci.c allowed local guest OS administrators
to cause a denial of service (infinite loop and QEMU
process crash) by leveraging failure to limit the number
of link Transfer Request Blocks (TRB) to process
(bsc#1003878).

- CVE-2016-8578: The v9fs_iov_vunmarshal function in
fsdev/9p-iov-marshal.c allowed local guest OS
administrators to cause a denial of service (NULL
pointer dereference and QEMU process crash) by sending
an empty string parameter to a 9P operation
(bsc#1003894).

- CVE-2016-9105: Memory leakage in v9fs_link
(bsc#1007494).

- CVE-2016-8577: Memory leak in the v9fs_read function in
hw/9pfs/9p.c allowed local guest OS administrators to
cause a denial of service (memory consumption) via
vectors related to an I/O read operation (bsc#1003893).

- CVE-2016-9106: Memory leakage in v9fs_write
(bsc#1007495).

- CVE-2016-8669: The serial_update_parameters function in
hw/char/serial.c allowed local guest OS administrators
to cause a denial of service (divide-by-zero error and
QEMU process crash) via vectors involving a value of
divider greater than baud base (bsc#1004707).

- CVE-2016-7909: The pcnet_rdra_addr function in
hw/net/pcnet.c allowed local guest OS administrators to
cause a denial of service (infinite loop and QEMU
process crash) by setting the (1) receive or (2)
transmit descriptor ring length to 0 (bsc#1002557).

- CVE-2016-9101: eepro100 memory leakage whern unplugging
a device (bsc#1007391).

- CVE-2016-8668: The rocker_io_writel function in
hw/net/rocker/rocker.c allowed local guest OS
administrators to cause a denial of service
(out-of-bounds read and QEMU process crash) by
leveraging failure to limit DMA buffer size
(bsc#1004706).

- CVE-2016-8910: The rtl8139_cplus_transmit function in
hw/net/rtl8139.c allowed local guest OS administrators
to cause a denial of service (infinite loop and CPU
consumption) by leveraging failure to limit the ring
descriptor count (bsc#1006538).

- CVE-2016-8909: The intel_hda_xfer function in
hw/audio/intel-hda.c allowed local guest OS
administrators to cause a denial of service (infinite
loop and CPU consumption) via an entry with the same
value for buffer length and pointer position
(bsc#1006536).

- CVE-2016-7994: Memory leak in
virtio_gpu_resource_create_2d (bsc#1003613).

- CVE-2016-9104: Integer overflow leading to OOB access in
9pfs (bsc#1007493).

- CVE-2016-8667: The rc4030_write function in
hw/dma/rc4030.c allowed local guest OS administrators to
cause a denial of service (divide-by-zero error and QEMU
process crash) via a large interval timer reload value
(bsc#1004702).

- CVE-2016-7907: The pcnet_rdra_addr function in
hw/net/pcnet.c allowed local guest OS administrators to
cause a denial of service (infinite loop and QEMU
process crash) by setting the (1) receive or (2)
transmit descriptor ring length to 0 (bsc#1002549).

These non-security issues were fixed :

- Change kvm-supported.txt to be per-architecture
documentation, stored in the package documentation
directory of each per-arch package (bsc#1005353).

- Update support doc to include current ARM64 (AArch64)
support stance (bsc#1005374).

- Fix migration failure when snapshot also has been done
(bsc#1008148).

- Change package post script udevadm trigger calls to be
device specific (bsc#1002116).

- Add qmp-commands.txt documentation file back in. It was
inadvertently dropped.

- Add an x86 cpu option (l3-cache) to specify that an L3
cache is present and another option (cpuid-0xb) to
enable the cpuid 0xb leaf (bsc#1007769).

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

See also :

https://bugzilla.opensuse.org/show_bug.cgi?id=1000345
https://bugzilla.opensuse.org/show_bug.cgi?id=1000346
https://bugzilla.opensuse.org/show_bug.cgi?id=1001151
https://bugzilla.opensuse.org/show_bug.cgi?id=1002116
https://bugzilla.opensuse.org/show_bug.cgi?id=1002549
https://bugzilla.opensuse.org/show_bug.cgi?id=1002550
https://bugzilla.opensuse.org/show_bug.cgi?id=1002557
https://bugzilla.opensuse.org/show_bug.cgi?id=1003612
https://bugzilla.opensuse.org/show_bug.cgi?id=1003613
https://bugzilla.opensuse.org/show_bug.cgi?id=1003878
https://bugzilla.opensuse.org/show_bug.cgi?id=1003893
https://bugzilla.opensuse.org/show_bug.cgi?id=1003894
https://bugzilla.opensuse.org/show_bug.cgi?id=1004702
https://bugzilla.opensuse.org/show_bug.cgi?id=1004706
https://bugzilla.opensuse.org/show_bug.cgi?id=1004707
https://bugzilla.opensuse.org/show_bug.cgi?id=1005353
https://bugzilla.opensuse.org/show_bug.cgi?id=1005374
https://bugzilla.opensuse.org/show_bug.cgi?id=1006536
https://bugzilla.opensuse.org/show_bug.cgi?id=1006538
https://bugzilla.opensuse.org/show_bug.cgi?id=1007391
https://bugzilla.opensuse.org/show_bug.cgi?id=1007493
https://bugzilla.opensuse.org/show_bug.cgi?id=1007494
https://bugzilla.opensuse.org/show_bug.cgi?id=1007495
https://bugzilla.opensuse.org/show_bug.cgi?id=1007769
https://bugzilla.opensuse.org/show_bug.cgi?id=1008148
https://bugzilla.opensuse.org/show_bug.cgi?id=998516
https://features.opensuse.org/316228

Solution :

Update the affected qemu packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

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