Security update for xen

Announcement ID:	SUSE-SU-2017:3236-1
Rating:	important
References:	bsc#1055047 bsc#1056336 bsc#1061075 bsc#1061081 bsc#1061086 bsc#1063123 bsc#1068187 bsc#1068191
Cross-References:	CVE-2017-13672 CVE-2017-15289 CVE-2017-15592 CVE-2017-15595 CVE-2017-15597
CVSS scores:	CVE-2017-13672 ( SUSE ): 3.0 CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L CVE-2017-13672 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-13672 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-15289 ( SUSE ): 6.0 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H CVE-2017-15289 ( NVD ): 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H CVE-2017-15289 ( NVD ): 6.0 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H CVE-2017-15592 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-15592 ( NVD ): 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2017-15595 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-15595 ( NVD ): 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2017-15597 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-15597 ( NVD ): 9.1 CVSS:3.0/AV:N/AC:L/PR:H/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 five vulnerabilities and has three security fixes can now be installed.

Description:

This update for xen fixes several issues.

These security issues were fixed:

• bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD) code allowed for DoS (XSA-246)
• bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged guests to retain a writable mapping of freed memory leading to information leaks, privilege escalation or DoS (XSA-247).
• CVE-2017-15289: The mode4and5 write functions allowed local OS guest privileged users to cause a denial of service (out-of-bounds write access and Qemu process crash) via vectors related to dst calculation (bsc#1063123)
• CVE-2017-15597: A grant copy operation being done on a grant of a dying domain allowed a malicious guest administrator to corrupt hypervisor memory, allowing for DoS or potentially privilege escalation and information leaks (bsc#1061075).
• CVE-2017-15595: x86 PV guest OS users were able to cause a DoS (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking (bsc#1061081).
• CVE-2017-15592: x86 HVM guest OS users were able to cause a DoS (hypervisor crash) or possibly gain privileges because self-linear shadow mappings were mishandled for translated guests (bsc#1061086).
• CVE-2017-13672: The VGA display emulator support allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors involving display update (bsc#1056336)

This non-security issue was fixed:

• bsc#1055047: Fixed --initrd-inject option in virt-install

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-6-2017-2013=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP1
  zypper in -t patch SUSE-SLE-SAP-12-SP1-2017-2013=1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1
  zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-2013=1

Package List:

• SUSE OpenStack Cloud 6 (x86_64)
  • xen-tools-debuginfo-4.5.5_20-22.36.3
  • xen-tools-domU-4.5.5_20-22.36.3
  • xen-libs-debuginfo-32bit-4.5.5_20-22.36.3
  • xen-debugsource-4.5.5_20-22.36.3
  • xen-kmp-default-4.5.5_20_k3.12.74_60.64.63-22.36.3
  • xen-tools-domU-debuginfo-4.5.5_20-22.36.3
  • xen-doc-html-4.5.5_20-22.36.3
  • xen-libs-4.5.5_20-22.36.3
  • xen-kmp-default-debuginfo-4.5.5_20_k3.12.74_60.64.63-22.36.3
  • xen-tools-4.5.5_20-22.36.3
  • xen-libs-debuginfo-4.5.5_20-22.36.3
  • xen-4.5.5_20-22.36.3
  • xen-libs-32bit-4.5.5_20-22.36.3
• SUSE Linux Enterprise Server for SAP Applications 12 SP1 (x86_64)
  • xen-tools-debuginfo-4.5.5_20-22.36.3
  • xen-tools-domU-4.5.5_20-22.36.3
  • xen-libs-debuginfo-32bit-4.5.5_20-22.36.3
  • xen-debugsource-4.5.5_20-22.36.3
  • xen-kmp-default-4.5.5_20_k3.12.74_60.64.63-22.36.3
  • xen-tools-domU-debuginfo-4.5.5_20-22.36.3
  • xen-doc-html-4.5.5_20-22.36.3
  • xen-libs-4.5.5_20-22.36.3
  • xen-kmp-default-debuginfo-4.5.5_20_k3.12.74_60.64.63-22.36.3
  • xen-tools-4.5.5_20-22.36.3
  • xen-libs-debuginfo-4.5.5_20-22.36.3
  • xen-4.5.5_20-22.36.3
  • xen-libs-32bit-4.5.5_20-22.36.3
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 (x86_64)
  • xen-tools-debuginfo-4.5.5_20-22.36.3
  • xen-tools-domU-4.5.5_20-22.36.3
  • xen-libs-debuginfo-32bit-4.5.5_20-22.36.3
  • xen-debugsource-4.5.5_20-22.36.3
  • xen-kmp-default-4.5.5_20_k3.12.74_60.64.63-22.36.3
  • xen-tools-domU-debuginfo-4.5.5_20-22.36.3
  • xen-doc-html-4.5.5_20-22.36.3
  • xen-libs-4.5.5_20-22.36.3
  • xen-kmp-default-debuginfo-4.5.5_20_k3.12.74_60.64.63-22.36.3
  • xen-tools-4.5.5_20-22.36.3
  • xen-libs-debuginfo-4.5.5_20-22.36.3
  • xen-4.5.5_20-22.36.3
  • xen-libs-32bit-4.5.5_20-22.36.3

References:

• https://www.suse.com/security/cve/CVE-2017-13672.html
• https://www.suse.com/security/cve/CVE-2017-15289.html
• https://www.suse.com/security/cve/CVE-2017-15592.html
• https://www.suse.com/security/cve/CVE-2017-15595.html
• https://www.suse.com/security/cve/CVE-2017-15597.html
• https://bugzilla.suse.com/show_bug.cgi?id=1055047
• https://bugzilla.suse.com/show_bug.cgi?id=1056336
• https://bugzilla.suse.com/show_bug.cgi?id=1061075
• https://bugzilla.suse.com/show_bug.cgi?id=1061081
• https://bugzilla.suse.com/show_bug.cgi?id=1061086
• https://bugzilla.suse.com/show_bug.cgi?id=1063123
• https://bugzilla.suse.com/show_bug.cgi?id=1068187
• https://bugzilla.suse.com/show_bug.cgi?id=1068191