All errata/sisyphus/ALT-PU-2016-3288-2
ALT-PU-2016-3288-2

Package update xen in branch sisyphus

Version4.7.0-alt1
Task#169981
Published2026-03-07
Max severityCRITICAL
Severity:

Closed issues (72)

BDU:2015-10459
HIGH7.8

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2016-07-07Modified: 2021-03-23
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2015-10479
MEDIUM4.9

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2016-07-07Modified: 2021-03-23
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2015-10521
MEDIUM4.9

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2016-07-07Modified: 2021-03-23
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2015-10522
MEDIUM4.9

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2016-07-07Modified: 2021-03-23
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2015-10884
MEDIUM4.9

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ обслуживании хостовой операционной системы

Published: 2015-08-07Modified: 2021-03-23
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2015-11313
HIGH7.2

Уязвимость гипервизора Xen, позволяющая нарушителю выполнить произвольный код

Published: 2015-09-15Modified: 2021-03-23
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
References
BDU:2015-11314
MEDIUM5.0

Уязвимость гипервизора Xen, позволяющая нарушителю читать данные, находящиеся в памяти

Published: 2015-09-15Modified: 2021-03-23
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:N/A:N
References
BDU:2015-11315
HIGH7.2

Уязвимость гипервизора Xen, позволяющая нарушителю получить привилегии, позволяющие выполнять отключение блочных устройств

Published: 2015-09-15Modified: 2021-03-23
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
References
BDU:2015-12106
MEDIUM4.9

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2015-12-14Modified: 2021-03-23
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2015-12111
MEDIUM4.9

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2015-12-14Modified: 2021-03-23
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2015-12123
MEDIUM4.7

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2015-12-14Modified: 2021-03-23
CVSS 2.0MEDIUM 4.7
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:N/A:C
References
BDU:2016-00004
HIGH7.8

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2016-01-18Modified: 2021-03-23
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2016-00005
HIGH7.2

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании или оказать другое воздействие

Published: 2016-01-18Modified: 2021-03-23
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
References
BDU:2016-00582
MEDIUM4.6

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2016-03-17Modified: 2021-03-23
CVSS 2.0MEDIUM 4.6
CVSS:2.0/AV:L/AC:L/Au:S/C:N/I:N/A:C
References
BDU:2016-01036
MEDIUM5.5

Уязвимость гипервизора Xen, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2016-05-05Modified: 2024-12-03
CVSS 3.xMEDIUM 5.5
CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:P
References
CVE-2014-6268
MEDIUM4.9

The evtchn_fifo_set_pending function in Xen 4.4.x allows local guest users to cause a denial of service (host crash) via vectors involving an uninitialized FIFO-based event channel control block when (1) binding or (2) moving an event to a different VCPU.

Published: 2015-01-12Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2014-7154
MEDIUM6.1

Race condition in HVMOP_track_dirty_vram in Xen 4.0.0 through 4.4.x does not ensure possession of the guarding lock for dirty video RAM tracking, which allows certain local guest domains to cause a denial of service via unspecified vectors.

Published: 2014-10-02Modified: 2025-04-12
CVSS 2.0MEDIUM 6.1
CVSS:2.0/AV:A/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2014-7156
LOW3.3

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.

Published: 2014-10-02Modified: 2025-04-12
CVSS 2.0LOW 3.3
CVSS:2.0/AV:A/AC:L/Au:N/C:N/I:N/A:P
References
CVE-2014-7188
HIGH8.3

The hvm_msr_read_intercept function in arch/x86/hvm/hvm.c in Xen 4.1 through 4.4.x uses an improper MSR range for x2APIC emulation, which allows local HVM guests to cause a denial of service (host crash) or read data from the hypervisor or other guests via unspecified vectors.

Published: 2014-10-02Modified: 2025-04-12
CVSS 2.0HIGH 8.3
CVSS:2.0/AV:A/AC:L/Au:N/C:C/I:C/A:C
References
CVE-2014-8867
MEDIUM4.9

The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.

Published: 2014-12-01Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2014-9030
HIGH7.1

The do_mmu_update function in arch/x86/mm.c in Xen 3.2.x through 4.4.x does not properly manage page references, which allows remote domains to cause a denial of service by leveraging control over an HVM guest and a crafted MMU_MACHPHYS_UPDATE.

Published: 2014-11-24Modified: 2025-04-12
CVSS 2.0HIGH 7.1
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:C
References
CVE-2014-9065
MEDIUM4.4

common/spinlock.c in Xen 4.4.x and earlier does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability to CVE-2014-9066.

Published: 2014-12-09Modified: 2025-04-12
CVSS 2.0MEDIUM 4.4
CVSS:2.0/AV:L/AC:M/Au:S/C:N/I:N/A:C
References
CVE-2014-9066
MEDIUM4.7

Xen 4.4.x and earlier, when using a large number of VCPUs, does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability than CVE-2014-9065.

Published: 2014-12-09Modified: 2025-04-12
CVSS 2.0MEDIUM 4.7
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:N/A:C
References
CVE-2015-0361
HIGH7.8

Use-after-free vulnerability in Xen 4.2.x, 4.3.x, and 4.4.x allows remote domains to cause a denial of service (system crash) via a crafted hypercall during HVM guest teardown.

Published: 2015-01-07Modified: 2025-04-12
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-1563
LOW2.1

The ARM GIC distributor virtualization in Xen 4.4.x and 4.5.x allows local guests to cause a denial of service by causing a large number messages to be logged.

Published: 2015-02-09Modified: 2025-04-12
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:P
References
CVE-2015-2044
LOW2.1

The emulation routines for unspecified X86 devices in Xen 3.2.x through 4.5.x does not properly initialize data, which allow local HVM guest users to obtain sensitive information via vectors involving an unsupported access size.

Published: 2015-03-12Modified: 2025-04-12
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:N/A:N
References
CVE-2015-2045
LOW2.1

The HYPERVISOR_xen_version hypercall in Xen 3.2.x through 4.5.x does not properly initialize data structures, which allows local guest users to obtain sensitive information via unspecified vectors.

Published: 2015-03-12Modified: 2025-04-12
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:N/A:N
References
CVE-2015-2150
MEDIUM4.9

Xen 3.3.x through 4.5.x and the Linux kernel through 3.19.1 do not properly restrict access to PCI command registers, which might allow local guest OS users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.

Published: 2015-03-12Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-2151
HIGH7.2

The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service (memory corruption), or possibly execute arbitrary code via unspecified vectors.

Published: 2015-03-12Modified: 2025-04-12
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
References
CVE-2015-2152
LOW1.9

Xen 4.5.x and earlier enables certain default backends when emulating a VGA device for an x86 HVM guest qemu even when the configuration disables them, which allows local guest users to obtain access to the VGA console by (1) setting the DISPLAY environment variable, when compiled with SDL support, or connecting to the VNC server on (2) ::1 or (3) 127.0.0.1, when not compiled with SDL support.

Published: 2015-03-18Modified: 2025-04-12
CVSS 2.0LOW 1.9
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:P/A:N
References
CVE-2015-2751
HIGH7.1

Xen 4.3.x, 4.4.x, and 4.5.x, when using toolstack disaggregation, allows remote domains with partial management control to cause a denial of service (host lock) via unspecified domctl operations.

Published: 2015-04-01Modified: 2025-04-12
CVSS 2.0HIGH 7.1
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:C
References
CVE-2015-2752
MEDIUM4.9

The XEN_DOMCTL_memory_mapping hypercall in Xen 3.2.x through 4.5.x, when using a PCI passthrough device, is not preemptible, which allows local x86 HVM domain users to cause a denial of service (host CPU consumption) via a crafted request to the device model (qemu-dm).

Published: 2015-04-01Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-2756
MEDIUM4.9

QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.

Published: 2015-04-01Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-3259
MEDIUM6.8

Stack-based buffer overflow in the xl command line utility in Xen 4.1.x through 4.5.x allows local guest administrators to gain privileges via a long configuration argument.

Published: 2015-07-16Modified: 2025-04-12
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:C
References
CVE-2015-3340
LOW2.9

Xen 4.2.x through 4.5.x does not initialize certain fields, which allows certain remote service domains to obtain sensitive information from memory via a (1) XEN_DOMCTL_gettscinfo or (2) XEN_SYSCTL_getdomaininfolist request.

Published: 2015-04-28Modified: 2025-04-12
CVSS 2.0LOW 2.9
CVSS:2.0/AV:A/AC:M/Au:N/C:P/I:N/A:N
References
CVE-2015-4103
MEDIUM4.9

Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.

Published: 2015-06-03Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-4104
HIGH7.8

Xen 3.3.x through 4.5.x does not properly restrict access to PCI MSI mask bits, which allows local x86 HVM guest users to cause a denial of service (unexpected interrupt and host crash) via unspecified vectors.

Published: 2015-06-03Modified: 2025-04-12
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-4105
MEDIUM4.9

Xen 3.3.x through 4.5.x enables logging for PCI MSI-X pass-through error messages, which allows local x86 HVM guests to cause a denial of service (host disk consumption) via certain invalid operations.

Published: 2015-06-03Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-4163
MEDIUM4.9

GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.

Published: 2015-06-15Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-4164
MEDIUM4.9

The compat_iret function in Xen 3.1 through 4.5 iterates the wrong way through a loop, which allows local 32-bit PV guest administrators to cause a denial of service (large loop and system hang) via a hypercall_iret call with EFLAGS.VM set.

Published: 2015-06-15Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-5154
HIGH7.2

Heap-based buffer overflow in the IDE subsystem in QEMU, as used in Xen 4.5.x and earlier, when the container has a CDROM drive enabled, allows local guest users to execute arbitrary code on the host via unspecified ATAPI commands.

Published: 2015-08-12Modified: 2025-04-12
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
References
CVE-2015-5165
CRITICAL9.3

The C+ mode offload emulation in the RTL8139 network card device model in QEMU, as used in Xen 4.5.x and earlier, allows remote attackers to read process heap memory via unspecified vectors.

Published: 2015-08-12Modified: 2025-04-12
CVSS 2.0CRITICAL 9.3
CVSS:2.0/AV:N/AC:M/Au:N/C:C/I:C/A:C
References
CVE-2015-5166
HIGH7.2

Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twice.

Published: 2015-08-12Modified: 2025-04-12
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
References
CVE-2015-5307
MEDIUM4.9

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c.

Published: 2015-11-16Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-7311
LOW3.6

libxl in Xen 4.1.x through 4.6.x does not properly handle the readonly flag on disks when using the qemu-xen device model, which allows local guest users to write to a read-only disk image.

Published: 2015-10-01Modified: 2025-04-12
CVSS 2.0LOW 3.6
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:P/A:P
References
CVE-2015-7812
MEDIUM4.9

The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local guest users to cause a denial of service (host crash) via a preemptible hypercall to the multicall interface.

Published: 2015-11-17Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-7813
LOW2.1

Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of (1) HYPERVISOR_physdev_op hypercalls, which are not properly handled in the do_physdev_op function in arch/arm/physdev.c, or (2) HYPERVISOR_hvm_op hypercalls, which are not properly handled in the do_hvm_op function in arch/arm/hvm.c.

Published: 2015-10-30Modified: 2025-04-12
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:P
References
CVE-2015-7814
MEDIUM4.7

Race condition in the relinquish_memory function in arch/arm/domain.c in Xen 4.6.x and earlier allows local domains with partial management control to cause a denial of service (host crash) via vectors involving the destruction of a domain and using XENMEM_decrease_reservation to reduce the memory of the domain.

Published: 2015-10-30Modified: 2025-04-12
CVSS 2.0MEDIUM 4.7
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:N/A:C
References
CVE-2015-7835
HIGH7.2

The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.

Published: 2015-10-30Modified: 2025-04-12
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
References
CVE-2015-7969
MEDIUM4.9

Multiple memory leaks in Xen 4.0 through 4.6.x allow local guest administrators or domains with certain permission to cause a denial of service (memory consumption) via a large number of "teardowns" of domains with the vcpu pointer array allocated using the (1) XEN_DOMCTL_max_vcpus hypercall or the xenoprofile state vcpu pointer array allocated using the (2) XENOPROF_get_buffer or (3) XENOPROF_set_passive hypercall.

Published: 2015-10-30Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-7971
LOW2.1

Xen 3.2.x through 4.6.x does not limit the number of printk console messages when logging certain pmu and profiling hypercalls, which allows local guests to cause a denial of service via a sequence of crafted (1) HYPERCALL_xenoprof_op hypercalls, which are not properly handled in the do_xenoprof_op function in common/xenoprof.c, or (2) HYPERVISOR_xenpmu_op hypercalls, which are not properly handled in the do_xenpmu_op function in arch/x86/cpu/vpmu.c.

Published: 2015-10-30Modified: 2025-04-12
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:P
References
CVE-2015-7972
LOW2.1

The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to "heavy memory pressure."

Published: 2015-10-30Modified: 2025-04-12
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:P
References
CVE-2015-8104
CRITICAL10.0

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c.

Published: 2015-11-16Modified: 2025-04-23
CVSS 2.0MEDIUM 4.7
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:N/A:C
CVSS 3.xCRITICAL 10.0
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
CVE-2015-8338
HIGH7.2

Xen 4.6.x and earlier does not properly enforce limits on page order inputs for the (1) XENMEM_increase_reservation, (2) XENMEM_populate_physmap, (3) XENMEM_exchange, and possibly other HYPERVISOR_memory_op suboperations, which allows ARM guest OS administrators to cause a denial of service (CPU consumption, guest reboot, or watchdog timeout and host reboot) and possibly have unspecified other impact via unknown vectors.

Published: 2015-12-17Modified: 2025-04-12
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
References
CVE-2015-8339
MEDIUM4.7

The memory_exchange function in common/memory.c in Xen 3.2.x through 4.6.x does not properly hand back pages to a domain, which might allow guest OS administrators to cause a denial of service (host crash) via unspecified vectors related to domain teardown.

Published: 2015-12-17Modified: 2025-04-12
CVSS 2.0MEDIUM 4.7
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:N/A:C
References
CVE-2015-8340
MEDIUM4.7

The memory_exchange function in common/memory.c in Xen 3.2.x through 4.6.x does not properly release locks, which might allow guest OS administrators to cause a denial of service (deadlock or host crash) via unspecified vectors, related to XENMEM_exchange error handling.

Published: 2015-12-17Modified: 2025-04-12
CVSS 2.0MEDIUM 4.7
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:N/A:C
References
CVE-2015-8341
HIGH7.8

The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service (memory and disk consumption) by starting domains.

Published: 2015-12-17Modified: 2025-04-12
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
CVE-2015-8554
HIGH7.5

Buffer overflow in hw/pt-msi.c in Xen 4.6.x and earlier, when using the qemu-xen-traditional (aka qemu-dm) device model, allows local x86 HVM guest administrators to gain privileges by leveraging a system with access to a passed-through MSI-X capable physical PCI device and MSI-X table entries, related to a "write path."

Published: 2016-04-14Modified: 2025-04-12
CVSS 2.0MEDIUM 6.6
CVSS:2.0/AV:L/AC:M/Au:S/C:C/I:C/A:C
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
References
CVE-2015-8555
HIGH8.6

Xen 4.6.x, 4.5.x, 4.4.x, 4.3.x, and earlier do not initialize x86 FPU stack and XMM registers when XSAVE/XRSTOR are not used to manage guest extended register state, which allows local guest domains to obtain sensitive information from other domains via unspecified vectors.

Published: 2016-04-13Modified: 2025-04-12
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS 3.xHIGH 8.6
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
References
CVE-2016-1570
HIGH8.5

The PV superpage functionality in arch/x86/mm.c in Xen 3.4.0, 3.4.1, and 4.1.x through 4.6.x allows local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates.

Published: 2016-01-22Modified: 2025-04-12
CVSS 2.0MEDIUM 6.9
CVSS:2.0/AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS 3.xHIGH 8.5
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
References
CVE-2016-1571
MEDIUM6.3

The paging_invlpg function in include/asm-x86/paging.h in Xen 3.3.x through 4.6.x, when using shadow mode paging or nested virtualization is enabled, allows local HVM guest users to cause a denial of service (host crash) via a non-canonical guest address in an INVVPID instruction, which triggers a hypervisor bug check.

Published: 2016-01-22Modified: 2025-04-12
CVSS 2.0MEDIUM 4.7
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 6.3
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
References
CVE-2016-2270
MEDIUM6.8

Xen 4.6.x and earlier allows local guest administrators to cause a denial of service (host reboot) via vectors related to multiple mappings of MMIO pages with different cachability settings.

Published: 2016-02-19Modified: 2025-04-12
CVSS 2.0MEDIUM 4.6
CVSS:2.0/AV:L/AC:L/Au:S/C:N/I:N/A:C
CVSS 3.xMEDIUM 6.8
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
References
CVE-2016-3159
LOW3.8

The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.

Published: 2016-04-13Modified: 2025-04-12
CVSS 2.0LOW 1.7
CVSS:2.0/AV:L/AC:L/Au:S/C:P/I:N/A:N
CVSS 3.xLOW 3.8
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
References
CVE-2016-3961
MEDIUM5.5

Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area.

Published: 2016-04-15Modified: 2025-04-12
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-4480
HIGH8.4

The guest_walk_tables function in arch/x86/mm/guest_walk.c in Xen 4.6.x and earlier does not properly handle the Page Size (PS) page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory.

Published: 2016-05-18Modified: 2025-04-12
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 3.xHIGH 8.4
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
CVE-2016-4962
MEDIUM6.7

The libxl device-handling in Xen 4.6.x and earlier allows local OS guest administrators to cause a denial of service (resource consumption or management facility confusion) or gain host OS privileges by manipulating information in guest controlled areas of xenstore.

Published: 2016-06-07Modified: 2025-04-12
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS 3.xMEDIUM 6.7
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
CVE-2016-4963
MEDIUM4.7

The libxl device-handling in Xen through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the backend directories in xenstore.

Published: 2016-06-07Modified: 2025-04-12
CVSS 2.0LOW 1.9
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 4.7
CVSS:3.x/CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-5242
MEDIUM5.6

The p2m_teardown function in arch/arm/p2m.c in Xen 4.4.x through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (NULL pointer dereference and host OS crash) by creating concurrent domains and holding references to them, related to VMID exhaustion.

Published: 2016-06-07Modified: 2025-04-12
CVSS 2.0MEDIUM 4.7
CVSS:2.0/AV:L/AC:M/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 5.6
CVSS:3.x/CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
References
CVE-2016-7154
MEDIUM6.7

Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.

Published: 2016-09-21Modified: 2025-04-12
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 3.xMEDIUM 6.7
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
CVE-2017-14431
MEDIUM5.5

Memory leak in Xen 3.3 through 4.8.x allows guest OS users to cause a denial of service (ARM or x86 AMD host OS memory consumption) by continually rebooting, because certain cleanup is skipped if no pass-through device was ever assigned, aka XSA-207.

Published: 2017-09-13Modified: 2025-04-20
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References