Update for xen.openSUSE_Leap_42.1_Update security important

Security update for xen

This updates xen to version 4.5.5 to fix the following issues:

- An unprivileged user in a guest could gain guest could escalate privilege to
that of the guest kernel, if it had could invoke the instruction emulator.
Only 64-bit x86 HVM guest were affected. Linux guest have not been
vulnerable. (boo#1016340, CVE-2016-10013)
- An unprivileged user in a 64 bit x86 guest could gain information from the
host, crash the host or gain privilege of the host
(boo#1009107, CVE-2016-9383)
- An unprivileged guest process could (unintentionally or maliciously) obtain
or ocorrupt sensitive information of other programs in the same guest. Only
x86 HVM guests have been affected. The attacker needs to be able to trigger
the Xen instruction emulator.
(boo#1000106, CVE-2016-7777)
- A guest on x86 systems could read small parts of hypervisor stack data
(boo#1012651, CVE-2016-9932)
- A malicious guest kernel could hang or crash the host system (boo#1014298,
CVE-2016-10024)
- The epro100 emulated network device caused a memory leak in the host when
unplugged in the guest. A privileged user in the guest could use this to
cause a DoS on the host or potentially crash the guest process on the host
(boo#1013668, CVE-2016-9101)
- The ColdFire Fast Ethernet Controller was vulnerable to an infinite loop
that could be trigged by a privileged user in the guest, leading to DoS
(boo#1013657, CVE-2016-9776)
- A malicious guest administrator could escalate their privilege to that of
the host. Only affects x86 HVM guests using qemu older version 1.6.0 or
using the qemu-xen-traditional.
(boo#1011652, CVE-2016-9637)
- An unprivileged guest user could escalate privilege to that of the guest
administrator on x86 HVM guests, especially on Intel CPUs
(boo#1009100, CVE-2016-9386)
- An unprivileged guest user could escalate privilege to that of the guest
administrator (on AMD CPUs) or crash the system (on Intel CPUs) on 32-bit
x86 HVM guests. Only guest operating systems that allowed a new task to
start in VM86 mode were affected.
(boo#1009103, CVE-2016-9382)
- A malicious guest administrator could crash the host on x86 PV guests only
(boo#1009104, CVE-2016-9385)
- An unprivileged guest user was able to crash the guest.
(boo#1009108, CVE-2016-9377, CVE-2016-9378)
- A malicious guest administrator could get privilege of the host emulator
process on x86 HVM guests.
(boo#1009109, CVE-2016-9381)
- A vulnerability in pygrub allowed a malicious guest administrator to obtain
the contents of sensitive host files, or even delete those files
(boo#1009111, CVE-2016-9379, CVE-2016-9380)
- A privileged guest user could cause an infinite loop in the RTL8139 ethernet
emulation to consume CPU cycles on the host, causing a DoS situation
(boo#1007157, CVE-2016-8910)
- A privileged guest user could cause an infinite loop in the intel-hda sound
emulation to consume CPU cycles on the host, causing a DoS situation
(boo#1007160, CVE-2016-8909)
- A privileged guest user could cause a crash of the emulator process on the
host by exploiting a divide by zero vulnerability of the JAZZ RC4030 chipset
emulation
(boo#1005004 CVE-2016-8667)
- A privileged guest user could cause a crash of the emulator process on the
host by exploiting a divide by zero issue of the 16550A UART emulation
(boo#1005005, CVE-2016-8669)
- A privileged guest user could cause a memory leak in the USB EHCI emulation,
causing a DoS situation on the host
(boo#1003870, CVE-2016-7995)
- A privileged guest user could cause an infinite loop in the USB xHCI
emulation, causing a DoS situation on the host
(boo#1004016, CVE-2016-8576)
- A privileged guest user could cause an infinite loop in the ColdFire Fash
Ethernet Controller emulation, causing a DoS situation on the host
(boo#1003030, CVE-2016-7908)
- A privileged guest user could cause an infinite loop in the AMD PC-Net II
emulation, causing a DoS situation on the host
(boo#1003032, CVE-2016-7909)
- Cause a reload of clvm in the block-dmmd script to avoid a blocking lvchange
call (boo#1002496)

Fixed bugs
bnc#1012651
VUL-0: CVE-2016-9932: xen: x86 CMPXCHG8B emulation fails to ignore operand size override (XSA-200)
bnc#1011652
VUL-0: CVE-2016-9637: xen: qemu ioport array overflow (XSA-199)
bnc#1013668
VUL-0: CVE-2016-9101: xen: qemu: net: eepro100 memory leakage at device unplug
bnc#1007157
VUL-0: CVE-2016-8910: xen: net: rtl8139: infinite loop while transmit in C+ mode
bnc#1000106
VUL-0: CVE-2016-7777: xen: CR0.TS and CR0.EM not always honored for x86 HVM guests (XSA-190)
bnc#1003870
VUL-0: CVE-2016-7995: xen: usb: hcd-ehci: memory leak in ehci_process_itd
bnc#1009108
VUL-0: CVE-2016-9377,CVE-2016-9378: XSA-196: xen: x86 software interrupt injection mis-handled
bnc#1009109
VUL-0: CVE-2016-9381: XSA-197: xen: qemu incautious about shared ring processing
bnc#1004016
VUL-0: CVE-2016-8576: xen: usb: xHCI: infinite loop vulnerability in xhci_ring_fetch
bnc#1009100
VUL-0: CVE-2016-9386: XSA-191: xen: x86 null segments not always treated as unusable
bnc#1016340
VUL-0: EMU: CVE-2016-10013: xen: x86: Mishandling of SYSCALL singlestep during emulation (XSA-204)
bnc#1009103
VUL-0: CVE-2016-9382: XSA-192: xen: x86 task switch to VM86 mode mis-handled
bnc#1009104
VUL-0: CVE-2016-9385: XSA-193: xen: x86 segment base write emulation lacking canonical address checks
bnc#1009107
VUL-0: CVE-2016-9383: XSA-195: xen: x86 64-bit bit test instruction emulation broken
bnc#1003032
VUL-0: CVE-2016-7909: xen: net: pcnet: infinite loop in pcnet_rdra_addr
bnc#1003030
VUL-0: CVE-2016-7908: xen: net: Infinite loop in mcf_fec_do_tx
bnc#1013657
VUL-0: CVE-2016-9776: xen: qemu: net: mcf_fec: infinite loop while receiving data in mcf_fec_receive
bnc#1007160
VUL-0: CVE-2016-8909: xen: audio: intel-hda: infinite loop in processing dma buffer stream
bnc#1002496
Adding support for reloading clvm in block-dmmd
bnc#1005005
VUL-0: CVE-2016-8669: xen: char: divide by zero error in serial_update_parameters
bnc#1005004
CVE-2016-8667: xen: dma: rc4030 divide by zero error in set_next_tick
bnc#1009111
VUL-0: CVE-2016-9379,CVE-2016-9380: XSA-198: xen: delimiter injection vulnerabilities in pygrub
bnc#1014298
VUL-0: CVE-2016-10024: xen: x86 PV guests may be able to mask interrupts (XSA-202)
Selected Binaries
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