SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2017:0647-1
Rating:             important
References:         #1000195 #1002496 #1013657 #1013668 #1014490 
                    #1014507 #1015169 #1016340 #1022627 #1022871 
                    #1023004 #1024183 #1024186 #1024307 #1024834 
                    #1025188 #907805 #987002 
Cross-References:   CVE-2014-8106 CVE-2016-10155 CVE-2016-9101
                    CVE-2016-9776 CVE-2016-9907 CVE-2016-9911
                    CVE-2016-9921 CVE-2016-9922 CVE-2017-2615
                    CVE-2017-2620 CVE-2017-5579 CVE-2017-5856
                    CVE-2017-5898 CVE-2017-5973
Affected Products:
                    SUSE Linux Enterprise Software Development Kit 11-SP4
                    SUSE Linux Enterprise Server 11-SP4
                    SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

   An update that solves 14 vulnerabilities and has four fixes
   is now available.

Description:


   This update for xen fixes several issues.

   These security issues were fixed:

   - 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#1025188)
   - 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#1024183)
   - 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#1024834)
   - 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#1024186)
   - CVE-2017-5898: The CCID Card device emulator support was vulnerable to
     an integer overflow flaw allowing a privileged user to crash the Qemu
     process on the host resulting in DoS (bsc#1024307)
   - 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-2014-8106: A heap-based buffer overflow in the Cirrus VGA emulator
     allowed local guest users to execute arbitrary code via vectors related
     to blit regions (bsc#907805)
   - 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#1022627)
   - 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#1014490)
   - 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#1014507)
   - 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#1015169)
   - 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#1015169)
   - CVE-2016-9101: A memory leak in hw/net/eepro100.c allowed local guest OS
     administrators to cause a denial of service (memory consumption and QEMU
     process crash) by repeatedly unplugging an i8255x (PRO100) NIC device
     (bsc#1013668)
   - 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#1013657)
   - A malicious guest could have, by frequently rebooting over extended
     periods of time, run the host system out of memory, resulting in a
     Denial of Service (DoS) (bsc#1022871)

   These non-security issues were fixed:

   - bsc#1000195: Prevent panic on CPU0 while booting on SLES 11 SP3
   - bsc#1002496: Added support for reloading clvm in block-dmmd block-dmmd
   - bsc#987002: Prevent crash of domU' after they were migrated from SP3 HV
     to SP4


Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Software Development Kit 11-SP4:

      zypper in -t patch sdksp4-xen-13019=1

   - SUSE Linux Enterprise Server 11-SP4:

      zypper in -t patch slessp4-xen-13019=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-xen-13019=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 x86_64):

      xen-devel-4.4.4_14-51.1

   - SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):

      xen-kmp-default-4.4.4_14_3.0.101_94-51.1
      xen-libs-4.4.4_14-51.1
      xen-tools-domU-4.4.4_14-51.1

   - SUSE Linux Enterprise Server 11-SP4 (x86_64):

      xen-4.4.4_14-51.1
      xen-doc-html-4.4.4_14-51.1
      xen-libs-32bit-4.4.4_14-51.1
      xen-tools-4.4.4_14-51.1

   - SUSE Linux Enterprise Server 11-SP4 (i586):

      xen-kmp-pae-4.4.4_14_3.0.101_94-51.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):

      xen-debuginfo-4.4.4_14-51.1
      xen-debugsource-4.4.4_14-51.1


References:

   https://www.suse.com/security/cve/CVE-2014-8106.html
   https://www.suse.com/security/cve/CVE-2016-10155.html
   https://www.suse.com/security/cve/CVE-2016-9101.html
   https://www.suse.com/security/cve/CVE-2016-9776.html
   https://www.suse.com/security/cve/CVE-2016-9907.html
   https://www.suse.com/security/cve/CVE-2016-9911.html
   https://www.suse.com/security/cve/CVE-2016-9921.html
   https://www.suse.com/security/cve/CVE-2016-9922.html
   https://www.suse.com/security/cve/CVE-2017-2615.html
   https://www.suse.com/security/cve/CVE-2017-2620.html
   https://www.suse.com/security/cve/CVE-2017-5579.html
   https://www.suse.com/security/cve/CVE-2017-5856.html
   https://www.suse.com/security/cve/CVE-2017-5898.html
   https://www.suse.com/security/cve/CVE-2017-5973.html
   https://bugzilla.suse.com/1000195
   https://bugzilla.suse.com/1002496
   https://bugzilla.suse.com/1013657
   https://bugzilla.suse.com/1013668
   https://bugzilla.suse.com/1014490
   https://bugzilla.suse.com/1014507
   https://bugzilla.suse.com/1015169
   https://bugzilla.suse.com/1016340
   https://bugzilla.suse.com/1022627
   https://bugzilla.suse.com/1022871
   https://bugzilla.suse.com/1023004
   https://bugzilla.suse.com/1024183
   https://bugzilla.suse.com/1024186
   https://bugzilla.suse.com/1024307
   https://bugzilla.suse.com/1024834
   https://bugzilla.suse.com/1025188
   https://bugzilla.suse.com/907805
   https://bugzilla.suse.com/987002