Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2017:2751-1
Rating: important
References: #1027519 #1055321 #1059777 #1061076 #1061077 #1061080 #1061081 #1061082 #1061084 #1061086 #1061087
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 12-SP3
  • SUSE Linux Enterprise Server 12-SP3
  • SUSE Linux Enterprise Desktop 12-SP3
    		•

    An update that solves one vulnerability and has 10 fixes is now available.

    Description:

    This update for xen fixes several issues:

    These security issues were fixed:

    - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable
    to a memory leakage issue allowing a privileged user inside the guest to
    cause a DoS and/or potentially crash the Qemu process on the host
    (bsc#1059777)
    - bsc#1061084: Missing cleanup in the page type system allowed a malicious
    or buggy PV guest to cause DoS (XSA-242)
    - bsc#1061086: A problem in the shadow pagetable code allowed a malicious
    or buggy HVM guest to cause DoS or cause hypervisor memory corruption
    potentially allowing the guest to escalate its privilege (XSA-243)
    - bsc#1061087: Problematic handling of the selector fields in the
    Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV
    guest to escalate its privileges or cause DoS (XSA-244)
    - bsc#1061077 Missing checks in the handling of DMOPs allowed malicious or
    buggy stub domain kernels or tool stacks otherwise living outside of
    Domain0 to cause a DoS (XSA-238)
    - bsc#1061080: Intercepted I/O write operations with less than a full
    machine word's worth of data were not properly handled, which allowed a
    malicious unprivileged x86 HVM guest to obtain sensitive information
    from the host or
    other guests (XSA-239)
    - bsc#1061081: In certain configurations of linear page tables a stack
    overflow might have occured that allowed a malicious or buggy PV guest
    to cause DoS and potentially privilege escalation and information leaks
    (XSA-240)
    - bsc#1061082: Under certain conditions x86 PV guests could have caused
    the hypervisor to miss a necessary TLB flush for a page. This allowed a
    malicious x86 PV guest to access all of system memory, allowing for
    privilege escalation, DoS, and information leaks (XSA-241)
    - bsc#1061076: Multiple issues existed with the setup of PCI MSI
    interrupts that allowed a malicious or buggy guest to cause DoS and
    potentially privilege escalation and information leaks (XSA-237)
    - bsc#1055321: When dealing with the grant map space of add-to-physmap
    operations, ARM specific code failed to release a lock. This allowed a
    malicious guest administrator to cause DoS (XSA-235)

    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 12-SP3:
      zypper in -t patch SUSE-SLE-SDK-12-SP3-2017-1702=1
    • SUSE Linux Enterprise Server 12-SP3:
      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1702=1
    • SUSE Linux Enterprise Desktop 12-SP3:
      zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2017-1702=1

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

    Package List:

    • SUSE Linux Enterprise Software Development Kit 12-SP3 (aarch64 x86_64):
      • xen-debugsource-4.9.0_14-3.18.1
      • xen-devel-4.9.0_14-3.18.1
    • SUSE Linux Enterprise Server 12-SP3 (x86_64):
      • xen-4.9.0_14-3.18.1
      • xen-debugsource-4.9.0_14-3.18.1
      • xen-doc-html-4.9.0_14-3.18.1
      • xen-libs-32bit-4.9.0_14-3.18.1
      • xen-libs-4.9.0_14-3.18.1
      • xen-libs-debuginfo-32bit-4.9.0_14-3.18.1
      • xen-libs-debuginfo-4.9.0_14-3.18.1
      • xen-tools-4.9.0_14-3.18.1
      • xen-tools-debuginfo-4.9.0_14-3.18.1
      • xen-tools-domU-4.9.0_14-3.18.1
      • xen-tools-domU-debuginfo-4.9.0_14-3.18.1
    • SUSE Linux Enterprise Desktop 12-SP3 (x86_64):
      • xen-4.9.0_14-3.18.1
      • xen-debugsource-4.9.0_14-3.18.1
      • xen-libs-32bit-4.9.0_14-3.18.1
      • xen-libs-4.9.0_14-3.18.1
      • xen-libs-debuginfo-32bit-4.9.0_14-3.18.1
      • xen-libs-debuginfo-4.9.0_14-3.18.1

    References: