Security update for xen

Announcement ID:	SUSE-SU-2017:0647-1
Rating:	important
References:	bsc#1000195 bsc#1002496 bsc#1013657 bsc#1013668 bsc#1014490 bsc#1014507 bsc#1015169 bsc#1016340 bsc#1022627 bsc#1022871 bsc#1023004 bsc#1024183 bsc#1024186 bsc#1024307 bsc#1024834 bsc#1025188 bsc#907805 bsc#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
CVSS scores:	CVE-2016-10155 ( NVD ): 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H CVE-2016-10155 ( NVD ): 6.0 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H CVE-2016-9101 ( NVD ): 6.0 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H CVE-2016-9776 ( SUSE ): 3.0 CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L CVE-2016-9776 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2016-9776 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2016-9907 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2016-9907 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2016-9911 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2016-9911 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2016-9921 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2016-9921 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2016-9922 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2016-9922 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-2615 ( NVD ): 5.5 CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L CVE-2017-2620 ( NVD ): 9.9 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2017-5579 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2017-5579 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2017-5856 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2017-5856 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2017-5898 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-5898 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-5973 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-5973 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:	SLES for SAP Applications 11-SP4 SUSE Linux Enterprise Server 11 SP4 SUSE Linux Enterprise Software Development Kit 11 SP4

An update that solves 14 vulnerabilities and has four security fixes can now be installed.

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 update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
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
• SLES for SAP Applications 11-SP4
  zypper in -t patch slessp4-xen-13019=1

Package List:

• SUSE Linux Enterprise Software Development Kit 11 SP4 (x86_64 i586)
  • xen-devel-4.4.4_14-51.1
• SUSE Linux Enterprise Server 11 SP4 (x86_64 i586)
  • xen-kmp-default-4.4.4_14_3.0.101_94-51.1
  • xen-tools-domU-4.4.4_14-51.1
  • xen-libs-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 Server 11 SP4 (x86_64)
  • xen-libs-32bit-4.4.4_14-51.1
  • xen-4.4.4_14-51.1
  • xen-doc-html-4.4.4_14-51.1
  • xen-tools-4.4.4_14-51.1
• SLES for SAP Applications 11-SP4 (x86_64)
  • xen-kmp-default-4.4.4_14_3.0.101_94-51.1
  • xen-tools-4.4.4_14-51.1
  • xen-tools-domU-4.4.4_14-51.1
  • xen-libs-32bit-4.4.4_14-51.1
  • xen-libs-4.4.4_14-51.1
  • xen-doc-html-4.4.4_14-51.1
  • xen-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/show_bug.cgi?id=1000195
• https://bugzilla.suse.com/show_bug.cgi?id=1002496
• https://bugzilla.suse.com/show_bug.cgi?id=1013657
• https://bugzilla.suse.com/show_bug.cgi?id=1013668
• https://bugzilla.suse.com/show_bug.cgi?id=1014490
• https://bugzilla.suse.com/show_bug.cgi?id=1014507
• https://bugzilla.suse.com/show_bug.cgi?id=1015169
• https://bugzilla.suse.com/show_bug.cgi?id=1016340
• https://bugzilla.suse.com/show_bug.cgi?id=1022627
• https://bugzilla.suse.com/show_bug.cgi?id=1022871
• https://bugzilla.suse.com/show_bug.cgi?id=1023004
• https://bugzilla.suse.com/show_bug.cgi?id=1024183
• https://bugzilla.suse.com/show_bug.cgi?id=1024186
• https://bugzilla.suse.com/show_bug.cgi?id=1024307
• https://bugzilla.suse.com/show_bug.cgi?id=1024834
• https://bugzilla.suse.com/show_bug.cgi?id=1025188
• https://bugzilla.suse.com/show_bug.cgi?id=907805
• https://bugzilla.suse.com/show_bug.cgi?id=987002