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Vuln ID | Summary | CVSS Severity |
---|---|---|
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 -0400 |
V4.0:(not available) V3.0: 4.4 MEDIUM V2.0: 1.7 LOW |
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 -0500 |
V4.0:(not available) V3.0: 6.8 MEDIUM V2.0: 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; 2:59:08 PM -0500 |
V4.0:(not available) V3.x:(not available) V2.0: 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; 2:59:07 PM -0500 |
V4.0:(not available) V3.x:(not available) V2.0: 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; 2:59:06 PM -0500 |
V4.0:(not available) V3.x:(not available) V2.0: 7.2 HIGH |
CVE-2015-7972 |
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: October 30, 2015; 11:59:09 AM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 2.1 LOW |
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 -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 2.1 LOW |
CVE-2015-7969 |
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: October 30, 2015; 11:59:05 AM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 4.9 MEDIUM |
CVE-2015-7835 |
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: October 30, 2015; 11:59:04 AM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 7.2 HIGH |
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 -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 4.7 MEDIUM |
CVE-2015-5166 |
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: August 12, 2015; 10:59:25 AM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 7.2 HIGH |
CVE-2015-5165 |
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: August 12, 2015; 10:59:24 AM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 9.3 HIGH |
CVE-2015-5154 |
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: August 12, 2015; 10:59:23 AM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 7.2 HIGH |
CVE-2015-4164 |
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: June 15, 2015; 11:59:13 AM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 4.9 MEDIUM |
CVE-2015-4105 |
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: June 03, 2015; 4:59:08 PM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 4.9 MEDIUM |
CVE-2015-4104 |
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: June 03, 2015; 4:59:07 PM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 7.8 HIGH |
CVE-2015-4103 |
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: June 03, 2015; 4:59:06 PM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 4.9 MEDIUM |
CVE-2015-2152 |
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: March 18, 2015; 12:59:02 PM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 1.9 LOW |
CVE-2015-2151 |
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: March 12, 2015; 10:59:03 AM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 7.2 HIGH |
CVE-2015-2150 |
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: March 12, 2015; 10:59:02 AM -0400 |
V4.0:(not available) V3.x:(not available) V2.0: 4.9 MEDIUM |