The SUSE Linux Enterprise Server 11 Service Pack 1 LTSS Xen hypervisor and toolset have been updated to fix various security issues and some bugs.

The following security issues have been addressed :

XSA-84: CVE-2014-1894: Xen 3.2 (and presumably earlier) exhibit both problems with the overflow issue being present for more than just the suboperations listed above. (bnc#860163)

XSA-84: CVE-2014-1892 CVE-2014-1893: Xen 3.3 through 4.1, while not affected by the above overflow, have a different overflow issue on FLASK_{GET,SET}BOOL and expose unreasonably large memory allocation to arbitrary guests.
(bnc#860163)

XSA-84: CVE-2014-1891: The FLASK_{GET,SET}BOOL, FLASK_USER and FLASK_CONTEXT_TO_SID suboperations of the flask hypercall are vulnerable to an integer overflow on the input size. The hypercalls attempt to allocate a buffer which is 1 larger than this size and is therefore vulnerable to integer overflow and an attempt to allocate then access a zero byte buffer. (bnc#860163)

XSA-82: CVE-2013-6885: The microcode on AMD 16h 00h through 0Fh processors does not properly handle the interaction between locked instructions and write-combined memory types, which allows local users to cause a denial of service (system hang) via a crafted application, aka the errata 793 issue. (bnc#853049)

XSA-76: CVE-2013-4554: Xen 3.0.3 through 4.1.x (possibly 4.1.6.1), 4.2.x (possibly 4.2.3), and 4.3.x (possibly 4.3.1) does not properly prevent access to hypercalls, which allows local guest users to gain privileges via a crafted application running in ring 1 or 2. (bnc#849668)

XSA-74: CVE-2013-4553: The XEN_DOMCTL_getmemlist hypercall in Xen 3.4.x through 4.3.x (possibly 4.3.1) does not always obtain the page_alloc_lock and mm_rwlock in the same order, which allows local guest administrators to cause a denial of service (host deadlock). (bnc#849667)

XSA-73: CVE-2013-4494: Xen before 4.1.x, 4.2.x, and 4.3.x does not take the page_alloc_lock and grant_table.lock in the same order, which allows local guest administrators with access to multiple vcpus to cause a denial of service (host deadlock) via unspecified vectors. (bnc#848657)

XSA-67: CVE-2013-4368: The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS:
segment override, uses an uninitialized variable as a segment base, which allows local 64-bit PV guests to obtain sensitive information (hypervisor stack content) via unspecified vectors related to stale data in a segment register. (bnc#842511)

XSA-66: CVE-2013-4361: The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction. (bnc#841766)

XSA-63: CVE-2013-4355: Xen 4.3.x and earlier does not properly handle certain errors, which allows local HVM guests to obtain hypervisor stack memory via a (1) port or (2) memory mapped I/O write or (3) other unspecified operations related to addresses without associated memory.
(bnc#840592)

XSA-62: CVE-2013-1442: Xen 4.0 through 4.3.x, when using AVX or LWP capable CPUs, does not properly clear previous data from registers when using an XSAVE or XRSTOR to extend the state components of a saved or restored vCPU after touching other restored extended registers, which allows local guest OSes to obtain sensitive information by reading the registers. (bnc#839596)

XSA-61: CVE-2013-4329: The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction. (bnc#839618)

XSA-60: CVE-2013-2212: The vmx_set_uc_mode function in Xen 3.3 through 4.3, when disabling chaches, allows local HVM guests with access to memory mapped I/O regions to cause a denial of service (CPU consumption and possibly hypervisor or guest kernel panic) via a crafted GFN range. (bnc#831120)

XSA-58: CVE-2013-1918: Certain page table manipulation operations in Xen 4.1.x, 4.2.x, and earlier are not preemptible, which allows local PV kernels to cause a denial of service via vectors related to 'deep page table traversal.' (bnc#826882)

XSA-58: CVE-2013-1432: Xen 4.1.x and 4.2.x, when the XSA-45 patch is in place, does not properly maintain references on pages stored for deferred cleanup, which allows local PV guest kernels to cause a denial of service (premature page free and hypervisor crash) or possible gain privileges via unspecified vectors. (bnc#826882)

XSA-57: CVE-2013-2211: The libxenlight (libxl) toolstack library in Xen 4.0.x, 4.1.x, and 4.2.x uses weak permissions for xenstore keys for paravirtualised and emulated serial console devices, which allows local guest administrators to modify the xenstore value via unspecified vectors.
(bnc#823608)

XSA-56: CVE-2013-2072: Buffer overflow in the Python bindings for the xc_vcpu_setaffinity call in Xen 4.0.x, 4.1.x, and 4.2.x allows local administrators with permissions to configure VCPU affinity to cause a denial of service (memory corruption and xend toolstack crash) and possibly gain privileges via a crafted cpumap. (bnc#819416)

XSA-55: CVE-2013-2196: Multiple unspecified vulnerabilities in the Elf parser (libelf) in Xen 4.2.x and earlier allow local guest administrators with certain permissions to have an unspecified impact via a crafted kernel, related to 'other problems' that are not CVE-2013-2194 or CVE-2013-2195. (bnc#823011)

XSA-55: CVE-2013-2195: The Elf parser (libelf) in Xen 4.2.x and earlier allow local guest administrators with certain permissions to have an unspecified impact via a crafted kernel, related to 'pointer dereferences' involving unexpected calculations. (bnc#823011)

XSA-55: CVE-2013-2194: Multiple integer overflows in the Elf parser (libelf) in Xen 4.2.x and earlier allow local guest administrators with certain permissions to have an unspecified impact via a crafted kernel. (bnc#823011)

XSA-53: CVE-2013-2077: Xen 4.0.x, 4.1.x, and 4.2.x does not properly restrict the contents of a XRSTOR, which allows local PV guest users to cause a denial of service (unhandled exception and hypervisor crash) via unspecified vectors.
(bnc#820919)

XSA-52: CVE-2013-2076: Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one domain to determine portions of the state of floating point instructions of other domains, which can be leveraged to obtain sensitive information such as cryptographic keys, a similar vulnerability to CVE-2006-1056. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processors in a security-relevant fashion that was not addressed by the kernels. (bnc#820917)

XSA-50: CVE-2013-1964: Xen 4.0.x and 4.1.x incorrectly releases a grant reference when releasing a non-v1, non-transitive grant, which allows local guest administrators to cause a denial of service (host crash), obtain sensitive information, or possible have other impacts via unspecified vectors. (bnc#816156)

XSA-49: CVE-2013-1952: Xen 4.x, when using Intel VT-d for a bus mastering capable PCI device, does not properly check the source when accessing a bridge device's interrupt remapping table entries for MSI interrupts, which allows local guest domains to cause a denial of service (interrupt injection) via unspecified vectors. (bnc#816163)

XSA-47: CVE-2013-1920: Xen 4.2.x, 4.1.x, and earlier, when the hypervisor is running 'under memory pressure' and the Xen Security Module (XSM) is enabled, uses the wrong ordering of operations when extending the per-domain event channel tracking table, which causes a use-after-free and allows local guest kernels to inject arbitrary events and gain privileges via unspecified vectors. (bnc#813677)

XSA-46: CVE-2013-1919: Xen 4.2.x and 4.1.x does not properly restrict access to IRQs, which allows local stub domain clients to gain access to IRQs and cause a denial of service via vectors related to 'passed-through IRQs or PCI devices.' (bnc#813675)

XSA-45: CVE-2013-1918: Certain page table manipulation operations in Xen 4.1.x, 4.2.x, and earlier are not preemptible, which allows local PV kernels to cause a denial of service via vectors related to 'deep page table traversal.' (bnc#816159)

XSA-44: CVE-2013-1917: Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction. (bnc#813673)

XSA-41: CVE-2012-6075: Buffer overflow in the e1000_receive function in the e1000 device driver (hw/e1000.c) in QEMU 1.3.0-rc2 and other versions, when the SBP and LPE flags are disabled, allows remote attackers to cause a denial of service (guest OS crash) and possibly execute arbitrary guest code via a large packet. (bnc#797523)

XSA-37: CVE-2013-0154: The get_page_type function in xen/arch/x86/mm.c in Xen 4.2, when debugging is enabled, allows local PV or HVM guest administrators to cause a denial of service (assertion failure and hypervisor crash) via unspecified vectors related to a hypercall. (bnc#797031)

XSA-36: CVE-2013-0153: The AMD IOMMU support in Xen 4.2.x, 4.1.x, 3.3, and other versions, when using AMD-Vi for PCI passthrough, uses the same interrupt remapping table for the host and all guests, which allows guests to cause a denial of service by injecting an interrupt into other guests.
(bnc#800275)

XSA-33: CVE-2012-5634: Xen 4.2.x, 4.1.x, and 4.0, when using Intel VT-d for PCI passthrough, does not properly configure VT-d when supporting a device that is behind a legacy PCI Bridge, which allows local guests to cause a denial of service to other guests by injecting an interrupt.
(bnc#794316)

XSA-31: CVE-2012-5515: The (1) XENMEM_decrease_reservation, (2) XENMEM_populate_physmap, and (3) XENMEM_exchange hypercalls in Xen 4.2 and earlier allow local guest administrators to cause a denial of service (long loop and hang) via a crafted extent_order value. (bnc#789950)

XSA-30: CVE-2012-5514: The guest_physmap_mark_populate_on_demand function in Xen 4.2 and earlier does not properly unlock the subject GFNs when checking if they are in use, which allows local guest HVM administrators to cause a denial of service (hang) via unspecified vectors. (bnc#789948)

XSA-29: CVE-2012-5513: The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range. (bnc#789951)

XSA-27: CVE-2012-6333: Multiple HVM control operations in Xen 3.4 through 4.2 allow local HVM guest OS administrators to cause a denial of service (physical CPU consumption) via a large input. (bnc#789944)

XSA-27: CVE-2012-5511: Stack-based buffer overflow in the dirty video RAM tracking functionality in Xen 3.4 through 4.1 allows local HVM guest OS administrators to cause a denial of service (crash) via a large bitmap image.
(bnc#789944)

XSA-26: CVE-2012-5510: Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service (hypervisor crash) via unspecified vectors. (bnc#789945)

XSA-25: CVE-2012-4544: The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk (1) before or (2) after decompression, which allows local guest administrators to cause a denial of service (domain 0 memory consumption) via a crafted (a) kernel or (b) ramdisk.
(bnc#787163)

XSA-24: CVE-2012-4539: Xen 4.0 through 4.2, when running 32-bit x86 PV guests on 64-bit hypervisors, allows local guest OS administrators to cause a denial of service (infinite loop and hang or crash) via invalid arguments to GNTTABOP_get_status_frames, aka 'Grant table hypercall infinite loop DoS vulnerability.' (bnc#786520)

XSA-23: CVE-2012-4538: The HVMOP_pagetable_dying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of service (hypervisor crash) via unspecified vectors. (bnc#786519)

XSA-22: CVE-2012-4537: Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka 'Memory mapping failure DoS vulnerability.' (bnc#786517)

XSA-20: CVE-2012-4535: Xen 3.4 through 4.2, and possibly earlier versions, allows local guest OS administrators to cause a denial of service (Xen infinite loop and physical CPU consumption) by setting a VCPU with an 'inappropriate deadline.' (bnc#786516)

XSA-19: CVE-2012-4411: The graphical console in Xen 4.0, 4.1 and 4.2 allows local OS guest administrators to obtain sensitive host resource information via the qemu monitor.
NOTE: this might be a duplicate of CVE-2007-0998.
(bnc#779212)

XSA-15: CVE-2012-3497: (1) TMEMC_SAVE_GET_CLIENT_WEIGHT, (2) TMEMC_SAVE_GET_CLIENT_CAP, (3) TMEMC_SAVE_GET_CLIENT_FLAGS and (4) TMEMC_SAVE_END in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (NULL pointer dereference or memory corruption and host crash) or possibly have other unspecified impacts via a NULL client id. (bnc#777890)

Also the following non-security bugs have been fixed :

  - xen hot plug attach/detach fails modified     blktap-pv-cdrom.patch. (bnc#805094)

  - guest 'disappears' after live migration Updated     block-dmmd script. (bnc#777628)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

XEN was updated to fix various denial of service issues.

  - bnc#789945 - CVE-2012-5510: xen: Grant table version     switch list corruption vulnerability (XSA-26)

  - bnc#789944 - CVE-2012-5511: xen: Several HVM operations     do not validate the range of their inputs (XSA-27)

  - bnc#789940 - CVE-2012-5512: xen: HVMOP_get_mem_access     crash / HVMOP_set_mem_access information leak (XSA-28)

  - bnc#789951 - CVE-2012-5513: xen: XENMEM_exchange may     overwrite hypervisor memory (XSA-29)

  - bnc#789948 - CVE-2012-5514: xen: Missing unlock in     guest_physmap_mark_populate_on_demand() (XSA-30)

  - bnc#789950 - CVE-2012-5515: xen: Several memory     hypercall operations allow invalid extent order values     (XSA-31)

  - bnc#789988 - FATAL PAGE FAULT in hypervisor     (arch_do_domctl)

  - Upstream patches from Jan     26132-tmem-save-NULL-check.patch     26134-x86-shadow-invlpg-check.patch     26148-vcpu-timer-overflow.patch (Replaces     CVE-2012-4535-xsa20.patch)     26149-x86-p2m-physmap-error-path.patch (Replaces     CVE-2012-4537-xsa22.patch)     26150-x86-shadow-unhook-toplevel-check.patch (Replaces     CVE-2012-4538-xsa23.patch)

  - bnc#777628 - guest 'disappears' after live migration     Updated block-dmmd script

  - Fix exception in balloon.py and osdep.py     xen-max-free-mem.diff

  - bnc#792476 - efi files missing in latest XEN update     Revert c/s 25751 EFI Makefile changes in     23614-x86_64-EFI-boot.patch

The remote host is affected by the vulnerability described in GLSA-201309-24 (Xen: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Xen. Please review the       CVE identifiers referenced below for details.
  Impact :

    Guest domains could possibly gain privileges, execute arbitrary code, or       cause a Denial of Service on the host domain (Dom0). Additionally, guest       domains could gain information about other virtual machines running on       the same host or read arbitrary files on the host.
  Workaround :

    The CVEs listed below do not currently have fixes, but only apply to Xen       setups which have &ldquo;tmem&rdquo; specified on the hypervisor command line.
      TMEM is not currently supported for use in production systems, and       administrators using tmem should disable it.
      Relevant CVEs:
      * CVE-2012-2497
      * CVE-2012-6030
      * CVE-2012-6031
      * CVE-2012-6032
      * CVE-2012-6033
      * CVE-2012-6034
      * CVE-2012-6035
      * CVE-2012-6036

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2013-80:01 advisory.

    The kernel package contains the Linux kernel (vmlinuz), the core of any Linux operating system. The kernel     handles the basic functions of the operating system: memory allocation, process allocation, device input     and output, etc.
    Security issues fixed with this release:
     CVE-2012-2372     The rds_ib_xmit function in net/rds/ib_send.c in the Reliable Datagram Sockets (RDS) protocol     implementation in the Linux kernel 3.7.4 and earlier allows local users to cause a denial of service     (BUG_ON and kernel panic) by establishing an RDS connection with the source IP address equal to the IPoIB     interface's own IP address, as demonstrated by rds-ping.
     CVE-2012-3552     The IP implementation in the Linux kernel before 3.0 might allow remote attackers to cause a denial of     service (slab corruption and system crash) by sending packets to an application that sets socket options     during the handling of network traffic.
     CVE-2012-4508     Race condition in fs/ext4/extents.c in the Linux kernel before 3.4.16 allows local users to obtain     sensitive information from a deleted file by reading an extent that was not properly marked as     uninitialized.
     CVE-2012-4535     Xen 3.4 through 4.2, and possibly earlier versions, allows local guest OS administrators to cause a denial     of service (Xen infinite loop and physical CPU consumption) by setting a VCPU with an inappropriate     deadline.
     CVE-2012-4537     Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables     when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of     service (memory consumption and assertion failure), aka Memory mapping failure DoS vulnerability.
     CVE-2012-5513     The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which     allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges     via unspecified vectors that overwrite memory in the hypervisor reserved range.
    Fixed bugs:
     Modified the qla2xxx driver so that it now correctly detects all attached LUNs.
     The Media Independent Interfacestatus of the bond interface in 802.3ad appeared as up even when MII     status of all of the slave devices was down. This has been fixed.
    Enhancements:
     Backported many changes from the bnx2x driver upstream version, in particular, the remote-fault link     detection feature.
     The INET socket interface now sends a warning when a third-party module using the kmalloc() function     allocates the ip_options structure.
    Please also check the changelog for extensive details.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This security update of XEN fixes various bugs and security issues.

  - Upstream patch 26088-xend-xml-filesize-check.patch

  - bnc#787163 - CVE-2012-4544: xen: Domain builder Out-of-     memory due to malicious kernel/ramdisk (XSA 25)     CVE-2012-4544-xsa25.patch

  - bnc#779212 - CVE-2012-4411: XEN / qemu: guest     administrator can access qemu monitor console (XSA-19)     CVE-2012-4411-xsa19.patch

  - bnc#786516 - CVE-2012-4535: xen: Timer overflow DoS     vulnerability CVE-2012-4535-xsa20.patch

  - bnc#786518 - CVE-2012-4536: xen: pirq range check DoS     vulnerability CVE-2012-4536-xsa21.patch

  - bnc#786517 - CVE-2012-4537: xen: Memory mapping failure     DoS vulnerability CVE-2012-4537-xsa22.patch

  - bnc#786519 - CVE-2012-4538: xen: Unhooking empty PAE     entries DoS vulnerability CVE-2012-4538-xsa23.patch

  - bnc#786520 - CVE-2012-4539: xen: Grant table hypercall     infinite loop DoS vulnerability     CVE-2012-4539-xsa24.patch

  - bnc#784087 - L3: Xen BUG at io_apic.c:129     26102-x86-IOAPIC-legacy-not-first.patch

  - Upstream patches from Jan     26054-x86-AMD-perf-ctr-init.patch     26055-x86-oprof-hvm-mode.patch     26056-page-alloc-flush-filter.patch     26061-x86-oprof-counter-range.patch     26062-ACPI-ERST-move-data.patch     26063-x86-HPET-affinity-lock.patch     26093-HVM-PoD-grant-mem-type.patch

  - Upstream patches from Jan     25931-x86-domctl-iomem-mapping-checks.patch     25952-x86-MMIO-remap-permissions.patch

  - Upstream patches from Jan     25808-domain_create-return-value.patch     25814-x86_64-set-debugreg-guest.patch     25815-x86-PoD-no-bug-in-non-translated.patch     25816-x86-hvm-map-pirq-range-check.patch     25833-32on64-bogus-pt_base-adjust.patch     25834-x86-S3-MSI-resume.patch     25835-adjust-rcu-lock-domain.patch     25836-VT-d-S3-MSI-resume.patch 25850-tmem-xsa-15-1.patch     25851-tmem-xsa-15-2.patch 25852-tmem-xsa-15-3.patch     25853-tmem-xsa-15-4.patch 25854-tmem-xsa-15-5.patch     25855-tmem-xsa-15-6.patch 25856-tmem-xsa-15-7.patch     25857-tmem-xsa-15-8.patch 25858-tmem-xsa-15-9.patch     25859-tmem-missing-break.patch 25860-tmem-cleanup.patch     25883-pt-MSI-cleanup.patch     25927-x86-domctl-ioport-mapping-range.patch     25929-tmem-restore-pool-version.patch

  - bnc#778105 - first XEN-PV VM fails to spawn xend:
    Increase wait time for disk to appear in host bootloader     Modified existing xen-domUloader.diff

  - Upstream patches from Jan     25752-ACPI-pm-op-valid-cpu.patch     25754-x86-PoD-early-access.patch     25755-x86-PoD-types.patch     25756-x86-MMIO-max-mapped-pfn.patch     25757-x86-EPT-PoD-1Gb-assert.patch     25764-x86-unknown-cpu-no-sysenter.patch     25765-x86_64-allow-unsafe-adjust.patch     25771-grant-copy-status-paged-out.patch     25773-x86-honor-no-real-mode.patch     25786-x86-prefer-multiboot-meminfo-over-e801.patch

  - bnc#777890 - CVE-2012-3497: xen: multiple TMEM hypercall     vulnerabilities (XSA-15)     CVE-2012-3497-tmem-xsa-15-1.patch     CVE-2012-3497-tmem-xsa-15-2.patch     CVE-2012-3497-tmem-xsa-15-3.patch     CVE-2012-3497-tmem-xsa-15-4.patch     CVE-2012-3497-tmem-xsa-15-5.patch     CVE-2012-3497-tmem-xsa-15-6.patch     CVE-2012-3497-tmem-xsa-15-7.patch     CVE-2012-3497-tmem-xsa-15-8.patch     CVE-2012-3497-tmem-xsa-15-9.patch     tmem-missing-break.patch

The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2015-0068 for details.

This update of XEN fixes various denial of service bugs.

  - bnc#789945 - CVE-2012-5510: xen: Grant table version     switch list corruption vulnerability (XSA-26)

  - bnc#789944 - CVE-2012-5511: xen: Several HVM operations     do not validate the range of their inputs (XSA-27)

  - bnc#789940 - CVE-2012-5512: xen: HVMOP_get_mem_access     crash / HVMOP_set_mem_access information leak (XSA-28)

  - bnc#789951 - CVE-2012-5513: xen: XENMEM_exchange may     overwrite hypervisor memory (XSA-29)

  - bnc#789948 - CVE-2012-5514: xen: Missing unlock in     guest_physmap_mark_populate_on_demand() (XSA-30)

  - bnc#789950 - CVE-2012-5515: xen: Several memory     hypercall operations allow invalid extent order values     (XSA-31)

  - bnc#789988 - FATAL PAGE FAULT in hypervisor     (arch_do_domctl)     25931-x86-domctl-iomem-mapping-checks.patch

  - Upstream patches from Jan     26132-tmem-save-NULL-check.patch     26134-x86-shadow-invlpg-check.patch     26148-vcpu-timer-overflow.patch (Replaces     CVE-2012-4535-xsa20.patch)     26149-x86-p2m-physmap-error-path.patch (Replaces     CVE-2012-4537-xsa22.patch)     26150-x86-shadow-unhook-toplevel-check.patch (Replaces     CVE-2012-4538-xsa23.patch)     26151-gnttab-compat-get-status-frames.patch (Replaces     CVE-2012-4539-xsa24.patch)

  - bnc#777628 - guest 'disappears' after live migration     Updated block-dmmd script

  - Fix exception in balloon.py and osdep.py     xen-max-free-mem.diff

  - bnc#792476 - efi files missing in latest XEN update     Revert c/s 25751 EFI Makefile changes in     23614-x86_64-EFI-boot.patch

A guest can block a cpu by setting a bad VCPU deadline [XSA 20, CVE-2012-4535] (#876198) HVM guest can use invalid pirq values to crash xen [XSA 21, CVE-2012-4536] (#876200) HVM guest can exhaust p2m table crashing xen [XSA 22, CVE-2012-4537] (#876203) PAE HVM guest can crash hypervisor [XSA-23, CVE-2012-4538] (#876205) 32-bit PV guest on 64-bit hypervisor can cause an hypervisor infinite loop [XSA-24, CVE-2012-4539] (#876207)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

libvirt received security and bugfixes :

  - Fixed a libvirt remote denial of service (crash)     problem. The following bugs have been fixed :.
    (CVE-2012-4423)

  - qemu: Fix probing for guest capabilities

  - xen-xm: Generate UUID if not specified

  - xenParseXM: don't dereference NULL pointer when script     is empty

ID	名稱	產品	系列	已發布	已更新	嚴重性
83616	SUSE SLES11 Security Update : Xen (SUSE-SU-2014:0446-1)	Nessus	SuSE Local Security Checks	2015/5/20	2021/1/19	high
74850	openSUSE Security Update : xen (openSUSE-SU-2012:1687-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/19	medium
70184	GLSA-201309-24 : Xen: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2013/9/28	2021/1/6	high
290045	MiracleLinux 3 : kernel-2.6.18-348.1.AXS3 (AXSA:2013-80:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/19	medium
74820	openSUSE Security Update : XEN (openSUSE-SU-2012:1572-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/19	high
84140	OracleVM 3.2 : xen (OVMSA-2015-0068) (POODLE) (Venom)	Nessus	OracleVM Local Security Checks	2015/6/12	2021/1/4	low
74852	openSUSE Security Update : xen (openSUSE-SU-2012:1685-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/19	medium
63009	Fedora 17 : xen-4.1.3-6.fc17 (2012-18242)	Nessus	Fedora Local Security Checks	2012/11/23	2021/1/11	medium
63010	Fedora 16 : xen-4.1.3-4.fc16 (2012-18249)	Nessus	Fedora Local Security Checks	2012/11/23	2021/1/11	medium
64201	SuSE 11.2 Security Update : libvirt (SAT Patch Number 7015)	Nessus	SuSE Local Security Checks	2013/1/25	2021/1/19	medium

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