Security update for xen

Announcement ID: SUSE-SU-2017:2450-1
Rating: important
References:
Cross-References:
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
  • CVE-2017-12855 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2017-14316 ( SUSE ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-14316 ( NVD ): 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2017-14317 ( SUSE ): 4.4 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-14317 ( NVD ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
  • CVE-2017-14319 ( SUSE ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-14319 ( NVD ): 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/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 10 vulnerabilities and has three 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-2017-11334: 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-2017-11434: 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-2017-10806: 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).
  • 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-2017-12855: Premature clearing of GTF_writing / GTF_reading lead to potentially leaking sensitive information (XSA-230, bsc#1052686).
  • CVE-2017-14316: Missing bound check in function alloc_heap_pages for an internal array allowed attackers using crafted hypercalls to execute arbitrary code within Xen (XSA-231, bsc#1056278)
  • CVE-2017-14317: A race in cxenstored may have cause a double-free allowind for DoS of the xenstored daemon (XSA-233, bsc#1056281).
  • CVE-2017-14319: An error while handling grant mappings allowed malicious or buggy x86 PV guest to escalate its privileges or crash the hypervisor (XSA-234, bsc#1056282).

This non-security issue was fixed:

  • bsc#1032598: Prevent removal of NVME devices
  • bsc#1037413: Support for newer intel cpu's, mwait-idle driver and skylake

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-13281=1
  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch slessp4-xen-13281=1
  • SLES for SAP Applications 11-SP4
    zypper in -t patch slessp4-xen-13281=1

Package List:

  • SUSE Linux Enterprise Software Development Kit 11 SP4 (x86_64 i586)
    • xen-devel-4.4.4_22-61.9.2
  • SUSE Linux Enterprise Server 11 SP4 (x86_64 i586)
    • xen-kmp-default-4.4.4_22_3.0.101_108.7-61.9.2
    • xen-libs-4.4.4_22-61.9.2
    • xen-tools-domU-4.4.4_22-61.9.2
  • SUSE Linux Enterprise Server 11 SP4 (i586)
    • xen-kmp-pae-4.4.4_22_3.0.101_108.7-61.9.2
  • SUSE Linux Enterprise Server 11 SP4 (x86_64)
    • xen-libs-32bit-4.4.4_22-61.9.2
    • xen-tools-4.4.4_22-61.9.2
    • xen-doc-html-4.4.4_22-61.9.2
    • xen-4.4.4_22-61.9.2
  • SLES for SAP Applications 11-SP4 (x86_64)
    • xen-4.4.4_22-61.9.2
    • xen-libs-32bit-4.4.4_22-61.9.2
    • xen-kmp-default-4.4.4_22_3.0.101_108.7-61.9.2
    • xen-tools-domU-4.4.4_22-61.9.2
    • xen-tools-4.4.4_22-61.9.2
    • xen-doc-html-4.4.4_22-61.9.2
    • xen-libs-4.4.4_22-61.9.2

References: