Filtered by vendor Xen
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439 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2015-6654 | 1 Xen | 1 Xen | 2016-12-07 | 2.1 LOW | N/A |
| The xenmem_add_to_physmap_one function in arch/arm/mm.c in Xen 4.5.x, 4.4.x, and earlier does not limit the number of printk console messages when reporting a failure to retrieve a reference on a foreign page, which allows remote domains to cause a denial of service by leveraging permissions to map the memory of a foreign guest. | |||||
| CVE-2016-3960 | 3 Fedoraproject, Oracle, Xen | 3 Fedora, Vm Server, Xen | 2016-12-03 | 7.2 HIGH | 8.8 HIGH |
| Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privileges by shadowing a superpage mapping. | |||||
| CVE-2016-3158 | 3 Fedoraproject, Oracle, Xen | 3 Fedora, Vm Server, Xen | 2016-12-03 | 1.7 LOW | 3.8 LOW |
| 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. | |||||
| CVE-2016-3157 | 2 Canonical, Xen | 2 Ubuntu Linux, Xen | 2016-12-03 | 7.2 HIGH | 7.8 HIGH |
| The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access. | |||||
| CVE-2016-4480 | 2 Oracle, Xen | 2 Vm Server, Xen | 2016-12-01 | 7.2 HIGH | 8.4 HIGH |
| 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. | |||||
| CVE-2016-5242 | 1 Xen | 1 Xen | 2016-11-28 | 4.7 MEDIUM | 5.6 MEDIUM |
| 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. | |||||
| CVE-2016-4962 | 2 Oracle, Xen | 2 Vm Server, Xen | 2016-11-28 | 6.8 MEDIUM | 6.7 MEDIUM |
| 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. | |||||
| CVE-2016-3961 | 2 Canonical, Xen | 2 Ubuntu Linux, Xen | 2016-11-28 | 2.1 LOW | 5.5 MEDIUM |
| 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. | |||||
| CVE-2015-8615 | 1 Xen | 1 Xen | 2016-11-28 | 2.1 LOW | 5.0 MEDIUM |
| The hvm_set_callback_via function in arch/x86/hvm/irq.c in Xen 4.6 does not limit the number of printk console messages when logging the new callback method, which allows local HVM guest OS users to cause a denial of service via a large number of changes to the callback method (HVM_PARAM_CALLBACK_IRQ). | |||||
| CVE-2016-6259 | 2 Citrix, Xen | 2 Xenserver, Xen | 2016-08-04 | 4.9 MEDIUM | 6.2 MEDIUM |
| Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check. | |||||
| CVE-2011-1166 | 1 Xen | 1 Xen | 2015-10-06 | 5.5 MEDIUM | N/A |
| Xen, possibly before 4.0.2, allows local 64-bit PV guests to cause a denial of service (host crash) by specifying user mode execution without user-mode pagetables. | |||||
| CVE-2011-1763 | 1 Xen | 1 Xen | 2015-09-03 | 7.7 HIGH | N/A |
| The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port. | |||||
| CVE-2014-1950 | 1 Xen | 1 Xen | 2014-12-12 | 4.6 MEDIUM | N/A |
| Use-after-free vulnerability in the xc_cpupool_getinfo function in Xen 4.1.x through 4.3.x, when using a multithreaded toolstack, does not properly handle a failure by the xc_cpumap_alloc function, which allows local users with access to management functions to cause a denial of service (heap corruption) and possibly gain privileges via unspecified vectors. | |||||
| CVE-2013-2211 | 1 Xen | 1 Xen | 2014-12-12 | 7.4 HIGH | N/A |
| 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. | |||||
| CVE-2013-2078 | 1 Xen | 1 Xen | 2014-12-12 | 4.7 MEDIUM | N/A |
| Xen 4.0.2 through 4.0.4, 4.1.x, and 4.2.x allows local PV guest users to cause a denial of service (hypervisor crash) via certain bit combinations to the XSETBV instruction. | |||||
| CVE-2013-2077 | 1 Xen | 1 Xen | 2014-12-12 | 5.2 MEDIUM | N/A |
| 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. | |||||
| CVE-2013-2076 | 1 Xen | 1 Xen | 2014-12-12 | 4.3 MEDIUM | N/A |
| 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. | |||||
| CVE-2013-2195 | 1 Xen | 1 Xen | 2014-12-12 | 6.9 MEDIUM | N/A |
| 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. | |||||
| CVE-2013-2196 | 1 Xen | 1 Xen | 2014-12-12 | 6.9 MEDIUM | N/A |
| 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. | |||||
| CVE-2013-2194 | 1 Xen | 1 Xen | 2014-12-12 | 6.9 MEDIUM | N/A |
| 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. | |||||
| CVE-2012-2934 | 1 Xen | 1 Xen | 2014-05-05 | 1.9 LOW | N/A |
| Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217. | |||||
| CVE-2013-1919 | 1 Xen | 1 Xen | 2014-04-19 | 4.7 MEDIUM | N/A |
| 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." | |||||
| CVE-2013-1918 | 1 Xen | 1 Xen | 2014-04-19 | 4.7 MEDIUM | N/A |
| 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." | |||||
| CVE-2013-1917 | 1 Xen | 1 Xen | 2014-04-19 | 1.9 LOW | N/A |
| 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. | |||||
| CVE-2012-5634 | 1 Xen | 1 Xen | 2014-04-19 | 6.1 MEDIUM | N/A |
| 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. | |||||
| CVE-2014-2580 | 1 Xen | 1 Xen | 2014-04-16 | 4.4 MEDIUM | N/A |
| The netback driver in Xen, when using certain Linux versions that do not allow sleeping in softirq context, allows local guest administrators to cause a denial of service ("scheduling while atomic" error and host crash) via a malformed packet, which causes a mutex to be taken when trying to disable the interface. | |||||
| CVE-2011-3346 | 3 Qemu, Redhat, Xen | 3 Qemu, Enterprise Linux, Xen | 2014-04-01 | 4.0 MEDIUM | N/A |
| Buffer overflow in hw/scsi-disk.c in the SCSI subsystem in QEMU before 0.15.2, as used by Xen, might allow local guest users with permission to access the CD-ROM to cause a denial of service (guest crash) via a crafted SAI READ CAPACITY SCSI command. NOTE: this is only a vulnerability when root has manually modified certain permissions or ACLs. | |||||
| CVE-2011-1936 | 1 Xen | 1 Xen | 2014-02-25 | 4.6 MEDIUM | N/A |
| Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation when exiting the VM, which allows local guest users to cause a denial of service (guest crash) via unspecified vectors. | |||||
| CVE-2011-1780 | 1 Xen | 1 Xen | 2014-01-08 | 6.1 MEDIUM | N/A |
| The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service (host crash) by replacing the instruction that causes the VM to exit in one thread with a different instruction in a different thread. | |||||
| CVE-2011-2901 | 1 Xen | 1 Xen | 2013-12-31 | 5.5 MEDIUM | N/A |
| Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a denial of service (host crash) via unspecified hypercalls that ignore virtual-address bits. | |||||
| CVE-2013-1922 | 1 Xen | 1 Xen | 2013-12-01 | 3.3 LOW | N/A |
| qemu-nbd in QEMU, as used in Xen 4.2.x, determines the format of a raw disk image based on the header, which allows local guest OS administrators to read arbitrary files on the host by modifying the header to identify a different format, which is used when the guest is restarted, a different vulnerability than CVE-2008-2004. | |||||
| CVE-2013-0151 | 1 Xen | 1 Xen | 2013-10-11 | 4.6 MEDIUM | N/A |
| The do_hvm_op function in xen/arch/x86/hvm/hvm.c in Xen 4.2.x on the x86_32 platform does not prevent HVM_PARAM_NESTEDHVM (aka nested virtualization) operations, which allows guest OS users to cause a denial of service (long-duration page mappings and host OS crash) by leveraging administrative access to an HVM guest in a domain with a large number of VCPUs. | |||||
| CVE-2013-0152 | 1 Xen | 1 Xen | 2013-10-11 | 4.7 MEDIUM | N/A |
| Memory leak in Xen 4.2 and unstable allows local HVM guests to cause a denial of service (host memory consumption) by performing nested virtualization in a way that triggers errors that are not properly handled. | |||||
| CVE-2013-0215 | 1 Xen | 1 Xen | 2013-10-11 | 4.3 MEDIUM | N/A |
| oxenstored in Xen 4.1.x, Xen 4.2.x, and xen-unstable does not properly consider the state of the Xenstore ring during read operations, which allows guest OS users to cause a denial of service (daemon crash and host-control outage, or memory consumption) or obtain sensitive control-plane data by leveraging guest administrative access. | |||||
| CVE-2012-3433 | 1 Xen | 1 Xen | 2013-10-11 | 4.9 MEDIUM | N/A |
| Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service (domain 0 VCPU hang and kernel panic) by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown. | |||||
| CVE-2012-3432 | 1 Xen | 1 Xen | 2013-10-11 | 1.9 LOW | N/A |
| The handle_mmio function in arch/x86/hvm/io.c in the MMIO operations emulator for Xen 3.3 and 4.x, when running an HVM guest, does not properly reset certain state information between emulation cycles, which allows local guest OS users to cause a denial of service (guest OS crash) via unspecified operations on MMIO regions. | |||||
| CVE-2012-0218 | 1 Xen | 1 Xen | 2013-10-11 | 1.9 LOW | N/A |
| Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service (guest crash) by later triggering an exception that would normally be handled within Xen. | |||||
| CVE-2012-3516 | 2 Citrix, Xen | 2 Xenserver, Xen | 2013-02-01 | 6.9 MEDIUM | N/A |
| The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location. | |||||
| CVE-2011-3131 | 1 Xen | 1 Xen | 2012-12-13 | 4.6 MEDIUM | N/A |
| Xen 4.1.1 and earlier allows local guest OS kernels with control of a PCI[E] device to cause a denial of service (CPU consumption and host hang) via many crafted DMA requests that are denied by the IOMMU, which triggers a livelock. | |||||