National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

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Search Parameters:
  • Contains Software Flaws (CVE)
  • CPE Product Version: cpe:/o:xen:xen:3.2.2
There are 117 matching records.
Displaying matches 61 through 80.
Vuln ID Summary CVSS Severity
CVE-2016-10013

Xen through 4.8.x allows local 64-bit x86 HVM guest OS users to gain privileges by leveraging mishandling of SYSCALL singlestep during emulation.

Published: January 26, 2017; 10:59:00 AM -05:00
V3.0: 7.8 HIGH
    V2: 4.6 MEDIUM
CVE-2016-9386

The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/limit values.

Published: January 23, 2017; 04:59:02 PM -05:00
V3.0: 7.8 HIGH
    V2: 4.6 MEDIUM
CVE-2016-9383

Xen, when running on a 64-bit hypervisor, allows local x86 guest OS users to modify arbitrary memory and consequently obtain sensitive information, cause a denial of service (host crash), or execute arbitrary code on the host by leveraging broken emulation of bit test instructions.

Published: January 23, 2017; 04:59:02 PM -05:00
V3.0: 8.8 HIGH
    V2: 7.2 HIGH
CVE-2016-9380

The pygrub boot loader emulator in Xen, when nul-delimited output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via NUL bytes in the bootloader configuration file.

Published: January 23, 2017; 04:59:02 PM -05:00
V3.0: 7.5 HIGH
    V2: 4.6 MEDIUM
CVE-2016-9379

The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes and S-expressions in the bootloader configuration file.

Published: January 23, 2017; 04:59:02 PM -05:00
V3.0: 7.9 HIGH
    V2: 4.6 MEDIUM
CVE-2016-7777

Xen 4.7.x and earlier does not properly honor CR0.TS and CR0.EM, which allows local x86 HVM guest OS users to read or modify FPU, MMX, or XMM register state information belonging to arbitrary tasks on the guest by modifying an instruction while the hypervisor is preparing to emulate it.

Published: October 07, 2016; 10:59:10 AM -04:00
V3.0: 6.3 MEDIUM
    V2: 3.3 LOW
CVE-2016-7094

Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update.

Published: September 21, 2016; 10:25:25 AM -04:00
V3.0: 4.1 MEDIUM
    V2: 1.5 LOW
CVE-2014-3672

The qemu implementation in libvirt before 1.3.0 and Xen allows local guest OS users to cause a denial of service (host disk consumption) by writing to stdout or stderr.

Published: May 25, 2016; 11:59:00 AM -04:00
V3.0: 6.5 MEDIUM
    V2: 2.1 LOW
CVE-2016-4480

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: May 18, 2016; 10:59:05 AM -04:00
V3.0: 8.4 HIGH
    V2: 7.2 HIGH
CVE-2016-3961

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: April 15, 2016; 10:59:14 AM -04:00
V3.0: 5.5 MEDIUM
    V2: 2.1 LOW
CVE-2015-8554

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: April 14, 2016; 10:59:05 AM -04:00
V3.0: 7.5 HIGH
    V2: 6.6 MEDIUM
CVE-2016-3158

The xrstor function in arch/x86/xstate.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: April 13, 2016; 12:59:18 PM -04:00
V3.0: 3.8 LOW
    V2: 1.7 LOW
CVE-2015-8552

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka "Linux pciback missing sanity checks."

Published: April 13, 2016; 11:59:06 AM -04:00
V3.0: 4.4 MEDIUM
    V2: 1.7 LOW
CVE-2015-8551

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."

Published: April 13, 2016; 11:59:05 AM -04:00
V3.0: 5.3 MEDIUM
    V2: 4.7 MEDIUM
CVE-2016-2270

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: February 19, 2016; 11:59:00 AM -05:00
V3.0: 6.8 MEDIUM
    V2: 4.6 MEDIUM
CVE-2015-8340

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: December 17, 2015; 02:59:08 PM -05:00
    V2: 4.7 MEDIUM
CVE-2015-8339

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: December 17, 2015; 02:59:07 PM -05:00
    V2: 4.7 MEDIUM
CVE-2015-8338

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: December 17, 2015; 02:59:06 PM -05:00
    V2: 7.2 HIGH
CVE-2015-7971

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: October 30, 2015; 11:59:07 AM -04:00
    V2: 2.1 LOW
CVE-2015-7814

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: October 30, 2015; 11:59:03 AM -04:00
    V2: 4.7 MEDIUM