Security update for xen

Announcement ID:	SUSE-SU-2017:2319-1
Rating:	important
References:	bsc#1002573 bsc#1046637 bsc#1047675 bsc#1048920 bsc#1049578 bsc#1051787 bsc#1051788 bsc#1052686
Cross-References:	CVE-2017-10664 CVE-2017-10806 CVE-2017-11334 CVE-2017-11434 CVE-2017-12135 CVE-2017-12137
CVSS scores:	CVE-2017-10664 ( SUSE ): 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2017-10664 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2017-10664 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2017-10806 ( SUSE ): 5.9 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H CVE-2017-10806 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-10806 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-11334 ( SUSE ): 6.2 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2017-11334 ( NVD ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVE-2017-11334 ( NVD ): 4.4 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVE-2017-11434 ( SUSE ): 8.6 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVE-2017-11434 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-11434 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-12135 ( SUSE ): 7.3 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H CVE-2017-12135 ( NVD ): 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2017-12137 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-12137 ( NVD ): 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products:	SUSE Linux Enterprise Server 12 SP1 SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 SUSE Linux Enterprise Server for SAP Applications 12 SP1 SUSE OpenStack Cloud 6

An update that solves six vulnerabilities and has two security fixes can now be installed.

Description:

This update for xen fixes several issues.

These security issues were fixed:

• CVE-2017-12135: Unbounded recursion in grant table code allowed a malicious guest to crash the host or potentially escalate privileges/leak information (XSA-226, bsc#1051787).
• CVE-2017-12137: Incorrectly-aligned updates to pagetables allowed for privilege escalation (XSA-227, bsc#1051788).
• CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local guest OS users to cause a denial of service (out-of-bounds read) via a crafted DHCP options string (bsc#1049578).
• CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt (bsc#1046637).
• CVE-2017-11334: The address_space_write_continue function in exec.c allowed local guest OS privileged users to cause a denial of service (out-of-bounds access and guest instance crash) by leveraging use of qemu_map_ram_ptr to access guest ram block area (bsc#1048920).
• CVE-2017-10806: Stack-based buffer overflow in hw/usb/redirect.c allowed local guest OS users to cause a denial of service via vectors related to logging debug messages (bsc#1047675).
• bsc#1052686: Premature clearing of GTF_writing / GTF_reading lead to potentially leaking sensitive information (XSA-230).

This non-security issue was fixed:

• bsc#1002573: Optimized LVM functions in block-dmmd block-dmmd

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 OpenStack Cloud 6
  zypper in -t patch SUSE-OpenStack-Cloud-6-2017-1428=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP1
  zypper in -t patch SUSE-SLE-SAP-12-SP1-2017-1428=1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1
  zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-1428=1

Package List:

• SUSE OpenStack Cloud 6 (x86_64)
  • xen-kmp-default-debuginfo-4.5.5_14_k3.12.74_60.64.54-22.25.1
  • xen-libs-debuginfo-32bit-4.5.5_14-22.25.1
  • xen-libs-4.5.5_14-22.25.1
  • xen-tools-domU-debuginfo-4.5.5_14-22.25.1
  • xen-libs-debuginfo-4.5.5_14-22.25.1
  • xen-debugsource-4.5.5_14-22.25.1
  • xen-kmp-default-4.5.5_14_k3.12.74_60.64.54-22.25.1
  • xen-tools-4.5.5_14-22.25.1
  • xen-tools-domU-4.5.5_14-22.25.1
  • xen-4.5.5_14-22.25.1
  • xen-libs-32bit-4.5.5_14-22.25.1
  • xen-doc-html-4.5.5_14-22.25.1
  • xen-tools-debuginfo-4.5.5_14-22.25.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP1 (x86_64)
  • xen-kmp-default-debuginfo-4.5.5_14_k3.12.74_60.64.54-22.25.1
  • xen-libs-debuginfo-32bit-4.5.5_14-22.25.1
  • xen-libs-4.5.5_14-22.25.1
  • xen-tools-domU-debuginfo-4.5.5_14-22.25.1
  • xen-libs-debuginfo-4.5.5_14-22.25.1
  • xen-debugsource-4.5.5_14-22.25.1
  • xen-kmp-default-4.5.5_14_k3.12.74_60.64.54-22.25.1
  • xen-tools-4.5.5_14-22.25.1
  • xen-tools-domU-4.5.5_14-22.25.1
  • xen-4.5.5_14-22.25.1
  • xen-libs-32bit-4.5.5_14-22.25.1
  • xen-doc-html-4.5.5_14-22.25.1
  • xen-tools-debuginfo-4.5.5_14-22.25.1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 (x86_64)
  • xen-kmp-default-debuginfo-4.5.5_14_k3.12.74_60.64.54-22.25.1
  • xen-libs-debuginfo-32bit-4.5.5_14-22.25.1
  • xen-libs-4.5.5_14-22.25.1
  • xen-tools-domU-debuginfo-4.5.5_14-22.25.1
  • xen-libs-debuginfo-4.5.5_14-22.25.1
  • xen-debugsource-4.5.5_14-22.25.1
  • xen-kmp-default-4.5.5_14_k3.12.74_60.64.54-22.25.1
  • xen-tools-4.5.5_14-22.25.1
  • xen-tools-domU-4.5.5_14-22.25.1
  • xen-4.5.5_14-22.25.1
  • xen-libs-32bit-4.5.5_14-22.25.1
  • xen-doc-html-4.5.5_14-22.25.1
  • xen-tools-debuginfo-4.5.5_14-22.25.1

References:

• https://www.suse.com/security/cve/CVE-2017-10664.html
• https://www.suse.com/security/cve/CVE-2017-10806.html
• https://www.suse.com/security/cve/CVE-2017-11334.html
• https://www.suse.com/security/cve/CVE-2017-11434.html
• https://www.suse.com/security/cve/CVE-2017-12135.html
• https://www.suse.com/security/cve/CVE-2017-12137.html
• https://bugzilla.suse.com/show_bug.cgi?id=1002573
• https://bugzilla.suse.com/show_bug.cgi?id=1046637
• https://bugzilla.suse.com/show_bug.cgi?id=1047675
• https://bugzilla.suse.com/show_bug.cgi?id=1048920
• https://bugzilla.suse.com/show_bug.cgi?id=1049578
• https://bugzilla.suse.com/show_bug.cgi?id=1051787
• https://bugzilla.suse.com/show_bug.cgi?id=1051788
• https://bugzilla.suse.com/show_bug.cgi?id=1052686