Filtered by vendor Xen
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439 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2016-9379 | 2 Citrix, Xen | 2 Xenserver, Xen | 2017-07-01 | 4.6 MEDIUM | 7.9 HIGH |
| 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. | |||||
| CVE-2016-9386 | 2 Citrix, Xen | 2 Xenserver, Xen | 2017-07-01 | 4.6 MEDIUM | 7.8 HIGH |
| 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. | |||||
| CVE-2016-9385 | 2 Citrix, Xen | 2 Xenserver, Xen | 2017-07-01 | 4.9 MEDIUM | 6.0 MEDIUM |
| The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks. | |||||
| CVE-2016-9383 | 2 Citrix, Xen | 2 Xenserver, Xen | 2017-07-01 | 7.2 HIGH | 8.8 HIGH |
| 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. | |||||
| CVE-2016-9382 | 2 Citrix, Xen | 2 Xenserver, Xen | 2017-07-01 | 4.6 MEDIUM | 7.8 HIGH |
| Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in VM86 mode. | |||||
| CVE-2016-9380 | 2 Citrix, Xen | 2 Xenserver, Xen | 2017-07-01 | 4.6 MEDIUM | 7.5 HIGH |
| 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. | |||||
| CVE-2016-7777 | 1 Xen | 1 Xen | 2017-07-01 | 3.3 LOW | 6.3 MEDIUM |
| 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. | |||||
| CVE-2016-7094 | 1 Xen | 1 Xen | 2017-07-01 | 1.5 LOW | 4.1 MEDIUM |
| 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. | |||||
| CVE-2016-7093 | 1 Xen | 1 Xen | 2017-07-01 | 7.2 HIGH | 8.2 HIGH |
| Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation. | |||||
| CVE-2016-7092 | 1 Xen | 1 Xen | 2017-07-01 | 6.8 MEDIUM | 8.2 HIGH |
| The get_page_from_l3e function in arch/x86/mm.c in Xen allows local 32-bit PV guest OS administrators to gain host OS privileges via vectors related to L3 recursive pagetables. | |||||
| CVE-2015-7814 | 1 Xen | 1 Xen | 2017-07-01 | 4.7 MEDIUM | N/A |
| 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. | |||||
| CVE-2015-7970 | 1 Xen | 1 Xen | 2017-07-01 | 4.9 MEDIUM | N/A |
| The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a "time-consuming linear scan," related to Populate-on-Demand. | |||||
| CVE-2015-8340 | 1 Xen | 1 Xen | 2017-07-01 | 4.7 MEDIUM | N/A |
| 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. | |||||
| CVE-2015-8341 | 1 Xen | 1 Xen | 2017-07-01 | 7.8 HIGH | N/A |
| 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. | |||||
| CVE-2012-4411 | 1 Xen | 1 Xen | 2017-07-01 | 4.6 MEDIUM | N/A |
| 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. | |||||
| CVE-2015-8339 | 1 Xen | 1 Xen | 2017-07-01 | 4.7 MEDIUM | N/A |
| 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. | |||||
| CVE-2015-8554 | 1 Xen | 1 Xen | 2017-07-01 | 6.6 MEDIUM | 7.5 HIGH |
| 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." | |||||
| CVE-2015-8555 | 2 Citrix, Xen | 2 Xenserver, Xen | 2017-07-01 | 5.0 MEDIUM | 8.6 HIGH |
| 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. | |||||
| CVE-2012-3495 | 2 Citrix, Xen | 2 Xenserver, Xen | 2017-07-01 | 6.1 MEDIUM | N/A |
| The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors. | |||||
| CVE-2016-2270 | 4 Debian, Fedoraproject, Oracle and 1 more | 4 Debian Linux, Fedora, Vm Server and 1 more | 2017-07-01 | 4.6 MEDIUM | 6.8 MEDIUM |
| 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. | |||||
| CVE-2016-2271 | 1 Xen | 1 Xen | 2017-07-01 | 2.1 LOW | 5.5 MEDIUM |
| VMX in Xen 4.6.x and earlier, when using an Intel or Cyrix CPU, allows local HVM guest users to cause a denial of service (guest crash) via vectors related to a non-canonical RIP. | |||||
| CVE-2016-6258 | 2 Citrix, Xen | 2 Xenserver, Xen | 2017-07-01 | 7.2 HIGH | 8.8 HIGH |
| The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries. | |||||
| CVE-2013-1964 | 1 Xen | 1 Xen | 2017-06-30 | 6.9 MEDIUM | N/A |
| 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 possibly have other impacts via unspecified vectors. | |||||
| CVE-2013-1432 | 1 Xen | 1 Xen | 2017-06-30 | 7.4 HIGH | N/A |
| 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 possibly gain privileges via unspecified vectors. | |||||
| CVE-2017-7995 | 3 Novell, Suse, Xen | 6 Suse Linux Enterprise Point Of Sale, Suse Linux Enterprise Server, Manager and 3 more | 2017-05-15 | 1.7 LOW | 3.8 LOW |
| Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads, leading to information disclosure. This is an error in the get_user function. NOTE: the upstream Xen Project considers versions before 4.5.x to be EOL. | |||||
| CVE-2016-7154 | 1 Xen | 1 Xen | 2017-04-10 | 7.2 HIGH | 6.7 MEDIUM |
| 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. | |||||
| CVE-2016-10025 | 2 Citrix, Xen | 2 Xenserver, Xen | 2017-01-27 | 2.1 LOW | 5.5 MEDIUM |
| VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check. | |||||
| CVE-2014-1896 | 1 Xen | 1 Xen | 2017-01-07 | 4.9 MEDIUM | N/A |
| The (1) do_send and (2) do_recv functions in io.c in libvchan in Xen 4.2.x, 4.3.x, and 4.4-RC series allows local guests to cause a denial of service or possibly gain privileges via crafted xenstore ring indexes, which triggers a "read or write past the end of the ring." | |||||
| CVE-2014-1895 | 1 Xen | 1 Xen | 2017-01-07 | 5.8 MEDIUM | N/A |
| Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read. | |||||
| CVE-2014-1894 | 1 Xen | 1 Xen | 2017-01-07 | 5.2 MEDIUM | N/A |
| Multiple integer overflows in unspecified suboperations in the flask hypercall in Xen 3.2.x and earlier, when XSM is enabled, allow local users to cause a denial of service (processor fault) via unspecified vectors, a different vulnerability than CVE-2014-1891, CVE-2014-1892, and CVE-2014-1893. | |||||
| CVE-2014-1893 | 1 Xen | 1 Xen | 2017-01-07 | 5.2 MEDIUM | N/A |
| Multiple integer overflows in the (1) FLASK_GETBOOL and (2) FLASK_SETBOOL suboperations in the flask hypercall in Xen 4.1.x, 3.3.x, 3.2.x, and earlier, when XSM is enabled, allow local users to cause a denial of service (processor fault) via unspecified vectors, a different vulnerability than CVE-2014-1891, CVE-2014-1892, and CVE-2014-1894. | |||||
| CVE-2013-4371 | 1 Xen | 1 Xen | 2017-01-07 | 4.4 MEDIUM | N/A |
| Use-after-free vulnerability in the libxl_list_cpupool function in the libxl toolstack library in Xen 4.2.x and 4.3.x, when running "under memory pressure," returns the original pointer when the realloc function fails, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors. | |||||
| CVE-2014-2599 | 1 Xen | 1 Xen | 2017-01-07 | 4.9 MEDIUM | N/A |
| The HVMOP_set_mem_access HVM control operations in Xen 4.1.x for 32-bit and 4.1.x through 4.4.x for 64-bit allow local guest administrators to cause a denial of service (CPU consumption) by leveraging access to certain service domains for HVM guests and a large input. | |||||
| CVE-2013-4370 | 1 Xen | 1 Xen | 2017-01-07 | 4.6 MEDIUM | N/A |
| The ocaml binding for the xc_vcpu_getaffinity function in Xen 4.2.x and 4.3.x frees certain memory that may still be intended for use, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors that trigger a (1) use-after-free or (2) double free. | |||||
| CVE-2013-4375 | 2 Qemu, Xen | 2 Qemu, Xen | 2017-01-07 | 2.7 LOW | N/A |
| The qdisk PV disk backend in qemu-xen in Xen 4.2.x and 4.3.x before 4.3.1, and qemu 1.1 and other versions, allows local HVM guests to cause a denial of service (domain grant reference consumption) via unspecified vectors. | |||||
| CVE-2014-1892 | 1 Xen | 1 Xen | 2017-01-07 | 5.2 MEDIUM | N/A |
| Xen 3.3 through 4.1, when XSM is enabled, allows local users to cause a denial of service via vectors related to a "large memory allocation," a different vulnerability than CVE-2014-1891, CVE-2014-1893, and CVE-2014-1894. | |||||
| CVE-2014-1891 | 1 Xen | 1 Xen | 2017-01-07 | 5.2 MEDIUM | N/A |
| Multiple integer overflows in the (1) FLASK_GETBOOL, (2) FLASK_SETBOOL, (3) FLASK_USER, and (4) FLASK_CONTEXT_TO_SID suboperations in the flask hypercall in Xen 4.3.x, 4.2.x, 4.1.x, 3.2.x, and earlier, when XSM is enabled, allow local users to cause a denial of service (processor fault) via unspecified vectors, a different vulnerability than CVE-2014-1892, CVE-2014-1893, and CVE-2014-1894. | |||||
| CVE-2013-6400 | 1 Xen | 1 Xen | 2017-01-07 | 6.8 MEDIUM | N/A |
| Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors. | |||||
| CVE-2013-1442 | 1 Xen | 1 Xen | 2017-01-07 | 1.2 LOW | N/A |
| 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. | |||||
| CVE-2013-4329 | 1 Xen | 1 Xen | 2017-01-07 | 6.5 MEDIUM | N/A |
| 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. | |||||
| CVE-2013-4554 | 1 Xen | 1 Xen | 2017-01-07 | 5.2 MEDIUM | N/A |
| 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. | |||||
| CVE-2013-4355 | 1 Xen | 1 Xen | 2017-01-07 | 1.5 LOW | N/A |
| 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. | |||||
| CVE-2013-4356 | 1 Xen | 1 Xen | 2017-01-07 | 5.4 MEDIUM | N/A |
| Xen 4.3.x writes hypervisor mappings to certain shadow pagetables when live migration is performed on hosts with more than 5TB of RAM, which allows local 64-bit PV guests to read or write to invalid memory and cause a denial of service (crash). | |||||
| CVE-2013-4553 | 1 Xen | 1 Xen | 2017-01-07 | 5.2 MEDIUM | N/A |
| 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). | |||||
| CVE-2013-4416 | 1 Xen | 1 Xen | 2017-01-07 | 5.2 MEDIUM | N/A |
| The Ocaml xenstored implementation (oxenstored) in Xen 4.1.x, 4.2.x, and 4.3.x allows local guest domains to cause a denial of service (domain shutdown) via a large message reply. | |||||
| CVE-2013-4361 | 1 Xen | 1 Xen | 2017-01-07 | 2.1 LOW | N/A |
| 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. | |||||
| CVE-2013-2072 | 2 Debian, Xen | 2 Debian Linux, Xen | 2016-12-31 | 7.4 HIGH | N/A |
| 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. | |||||
| CVE-2013-2212 | 1 Xen | 1 Xen | 2016-12-22 | 5.7 MEDIUM | N/A |
| The vmx_set_uc_mode function in Xen 3.3 through 4.3, when disabling caches, 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. | |||||
| CVE-2015-0777 | 2 Linux, Xen | 2 Linux Kernel, Xen | 2016-12-08 | 2.1 LOW | N/A |
| drivers/xen/usbback/usbback.c in linux-2.6.18-xen-3.4.0 (aka the Xen 3.4.x support patches for the Linux kernel 2.6.18), as used in the Linux kernel 2.6.x and 3.x in SUSE Linux distributions, allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory via unspecified vectors. | |||||
| CVE-2015-8338 | 1 Xen | 1 Xen | 2016-12-07 | 7.2 HIGH | N/A |
| 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. | |||||