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439 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2017-12136 | 3 Citrix, Debian, Xen | 3 Xenserver, Debian Linux, Xen | 2019-05-06 | 6.9 MEDIUM | 7.8 HIGH |
| Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling. | |||||
| CVE-2018-19967 | 2 Debian, Xen | 2 Debian Linux, Xen | 2019-04-17 | 4.9 MEDIUM | 6.5 MEDIUM |
| An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel's mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix. | |||||
| CVE-2018-12892 | 2 Debian, Xen | 2 Debian Linux, Xen | 2019-03-29 | 6.5 MEDIUM | 9.9 CRITICAL |
| An issue was discovered in Xen 4.7 through 4.10.x. libxl fails to pass the readonly flag to qemu when setting up a SCSI disk, due to what was probably an erroneous merge conflict resolution. Malicious guest administrators or (in some situations) users may be able to write to supposedly read-only disk images. Only emulated SCSI disks (specified as "sd" in the libxl disk configuration, or an equivalent) are affected. IDE disks ("hd") are not affected (because attempts to make them readonly are rejected). Additionally, CDROM devices (that is, devices specified to be presented to the guest as CDROMs, regardless of the nature of the backing storage on the host) are not affected; they are always read only. Only systems using qemu-xen (rather than qemu-xen-traditional) as the device model version are vulnerable. Only systems using libxl or libxl-based toolstacks are vulnerable. (This includes xl, and libvirt with the libxl driver.) The vulnerability is present in Xen versions 4.7 and later. (In earlier versions, provided that the patch for XSA-142 has been applied, attempts to create read only disks are rejected.) If the host and guest together usually support PVHVM, the issue is exploitable only if the malicious guest administrator has control of the guest kernel or guest kernel command line. | |||||
| CVE-2018-15469 | 2 Debian, Xen | 2 Debian Linux, Xen | 2019-03-08 | 4.9 MEDIUM | 6.5 MEDIUM |
| An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash). | |||||
| CVE-2016-3159 | 4 Debian, Fedoraproject, Oracle and 1 more | 4 Debian Linux, Fedora, Vm Server and 1 more | 2019-02-21 | 1.7 LOW | 3.8 LOW |
| 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. | |||||
| CVE-2015-8104 | 5 Canonical, Debian, Linux and 2 more | 6 Ubuntu Linux, Debian Linux, Linux Kernel and 3 more | 2019-02-13 | 4.7 MEDIUM | N/A |
| 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. | |||||
| CVE-2015-5307 | 5 Canonical, Debian, Linux and 2 more | 5 Ubuntu Linux, Debian Linux, Linux Kernel and 2 more | 2019-02-12 | 4.9 MEDIUM | N/A |
| 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. | |||||
| CVE-2018-18883 | 1 Xen | 1 Xen | 2019-01-24 | 7.2 HIGH | 8.8 HIGH |
| An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted. | |||||
| CVE-2013-4494 | 2 Debian, Xen | 2 Debian Linux, Xen | 2018-12-13 | 5.2 MEDIUM | N/A |
| Xen before 4.1.x, 4.2.x, and 4.3.x does not take the page_alloc_lock and grant_table.lock in the same order, which allows local guest administrators with access to multiple vcpus to cause a denial of service (host deadlock) via unspecified vectors. | |||||
| CVE-2018-15470 | 1 Xen | 1 Xen | 2018-11-13 | 4.9 MEDIUM | 6.5 MEDIUM |
| An issue was discovered in Xen through 4.11.x. The logic in oxenstored for handling writes depended on the order of evaluation of expressions making up a tuple. As indicated in section 7.7.3 "Operations on data structures" of the OCaml manual, the order of evaluation of subexpressions is not specified. In practice, different implementations behave differently. Thus, oxenstored may not enforce the configured quota-maxentity. This allows a malicious or buggy guest to write as many xenstore entries as it wishes, causing unbounded memory usage in oxenstored. This can lead to a system-wide DoS. | |||||
| CVE-2018-7540 | 2 Debian, Xen | 2 Debian Linux, Xen | 2018-11-13 | 4.9 MEDIUM | 6.5 MEDIUM |
| An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing. | |||||
| CVE-2018-5244 | 1 Xen | 1 Xen | 2018-10-31 | 4.9 MEDIUM | 6.5 MEDIUM |
| In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times. | |||||
| CVE-2018-7542 | 2 Debian, Xen | 2 Debian Linux, Xen | 2018-10-31 | 4.9 MEDIUM | 6.5 MEDIUM |
| An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC. | |||||
| CVE-2018-10472 | 2 Debian, Xen | 2 Debian Linux, Xen | 2018-10-31 | 1.9 LOW | 5.6 MEDIUM |
| An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users (in certain configurations) to read arbitrary dom0 files via QMP live insertion of a CDROM, in conjunction with specifying the target file as the backing file of a snapshot. | |||||
| CVE-2018-10471 | 2 Debian, Xen | 2 Debian Linux, Xen | 2018-10-31 | 4.9 MEDIUM | 6.5 MEDIUM |
| An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (out-of-bounds zero write and hypervisor crash) via unexpected INT 80 processing, because of an incorrect fix for CVE-2017-5754. | |||||
| CVE-2014-9065 | 2 Opensuse, Xen | 2 Opensuse, Xen | 2018-10-30 | 4.4 MEDIUM | N/A |
| 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. | |||||
| CVE-2015-0361 | 2 Opensuse, Xen | 2 Opensuse, Xen | 2018-10-30 | 7.8 HIGH | N/A |
| 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. | |||||
| CVE-2014-8595 | 3 Debian, Opensuse, Xen | 3 Debian Linux, Opensuse, Xen | 2018-10-30 | 1.9 LOW | N/A |
| arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction. | |||||
| CVE-2015-5154 | 4 Fedoraproject, Qemu, Suse and 1 more | 8 Fedora, Qemu, Linux Enterprise Debuginfo and 5 more | 2018-10-30 | 7.2 HIGH | N/A |
| 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. | |||||
| CVE-2013-6375 | 2 Opensuse, Xen | 2 Opensuse, Xen | 2018-10-30 | 7.9 HIGH | N/A |
| Xen 4.2.x and 4.3.x, when using Intel VT-d for PCI passthrough, does not properly flush the TLB after clearing a present translation table entry, which allows local guest administrators to cause a denial of service or gain privileges via unspecified vectors related to an "inverted boolean parameter." | |||||
| CVE-2014-5146 | 2 Opensuse, Xen | 2 Opensuse, Xen | 2018-10-30 | 4.7 MEDIUM | N/A |
| Certain MMU virtualization operations in Xen 4.2.x through 4.4.x before the xsa97-hap patch, when using Hardware Assisted Paging (HAP), are not preemptible, which allows local HVM guest to cause a denial of service (vcpu consumption) by invoking these operations, which process every page assigned to a guest, a different vulnerability than CVE-2014-5149. | |||||
| CVE-2014-5149 | 2 Opensuse, Xen | 2 Opensuse, Xen | 2018-10-30 | 4.7 MEDIUM | N/A |
| Certain MMU virtualization operations in Xen 4.2.x through 4.4.x, when using shadow pagetables, are not preemptible, which allows local HVM guest to cause a denial of service (vcpu consumption) by invoking these operations, which process every page assigned to a guest, a different vulnerability than CVE-2014-5146. | |||||
| CVE-2014-8867 | 4 Debian, Opensuse, Redhat and 1 more | 5 Debian Linux, Opensuse, Enterprise Linux and 2 more | 2018-10-30 | 4.9 MEDIUM | N/A |
| 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. | |||||
| CVE-2014-8866 | 3 Debian, Opensuse, Xen | 3 Debian Linux, Opensuse, Xen | 2018-10-30 | 4.7 MEDIUM | N/A |
| The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode. | |||||
| CVE-2015-3340 | 5 Debian, Fedoraproject, Opensuse and 2 more | 9 Debian Linux, Fedora, Opensuse and 6 more | 2018-10-30 | 2.9 LOW | N/A |
| 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. | |||||
| CVE-2014-8594 | 3 Debian, Opensuse, Xen | 3 Debian Linux, Opensuse, Xen | 2018-10-30 | 5.4 MEDIUM | N/A |
| The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP). | |||||
| CVE-2014-3968 | 2 Opensuse, Xen | 2 Opensuse, Xen | 2018-10-30 | 5.5 MEDIUM | N/A |
| The HVMOP_inject_msi function in Xen 4.2.x, 4.3.x, and 4.4.x allows local guest HVM administrators to cause a denial of service (host crash) via a large number of crafted requests, which trigger an error messages to be logged. | |||||
| CVE-2014-3967 | 2 Opensuse, Xen | 2 Opensuse, Xen | 2018-10-30 | 5.5 MEDIUM | N/A |
| The HVMOP_inject_msi function in Xen 4.2.x, 4.3.x, and 4.4.x does not properly check the return value from the IRQ setup check, which allows local HVM guest administrators to cause a denial of service (NULL pointer dereference and crash) via unspecified vectors. | |||||
| CVE-2014-9030 | 3 Debian, Opensuse, Xen | 3 Debian Linux, Opensuse, Xen | 2018-10-30 | 7.1 HIGH | N/A |
| 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. | |||||
| CVE-2014-9066 | 2 Opensuse, Xen | 2 Opensuse, Xen | 2018-10-30 | 4.7 MEDIUM | N/A |
| 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. | |||||
| CVE-2013-3495 | 2 Opensuse, Xen | 2 Opensuse, Xen | 2018-10-30 | 4.7 MEDIUM | N/A |
| The Intel VT-d Interrupt Remapping engine in Xen 3.3.x through 4.3.x allows local guests to cause a denial of service (kernel panic) via a malformed Message Signaled Interrupt (MSI) from a PCI device that is bus mastering capable that triggers a System Error Reporting (SERR) Non-Maskable Interrupt (NMI). | |||||
| CVE-2014-7155 | 4 Debian, Fedoraproject, Opensuse and 1 more | 4 Debian Linux, Fedora, Opensuse and 1 more | 2018-10-30 | 5.8 MEDIUM | N/A |
| The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction. | |||||
| CVE-2014-7154 | 4 Debian, Fedoraproject, Opensuse and 1 more | 4 Debian Linux, Fedora, Opensuse and 1 more | 2018-10-30 | 6.1 MEDIUM | N/A |
| 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. | |||||
| CVE-2015-0268 | 1 Xen | 1 Xen | 2018-10-30 | 4.9 MEDIUM | N/A |
| The vgic_v2_to_sgi function in arch/arm/vgic-v2.c in Xen 4.5.x, when running on ARM hardware with general interrupt controller (GIC) version 2, allows local guest users to cause a denial of service (host crash) by writing an invalid value to the GICD.SGIR register. | |||||
| CVE-2014-7188 | 1 Xen | 1 Xen | 2018-10-30 | 8.3 HIGH | N/A |
| 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. | |||||
| CVE-2014-7156 | 1 Xen | 1 Xen | 2018-10-30 | 3.3 LOW | N/A |
| 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. | |||||
| CVE-2014-5147 | 1 Xen | 1 Xen | 2018-10-30 | 4.3 MEDIUM | N/A |
| Xen 4.4.x, when running a 64-bit kernel on an ARM system, does not properly handle traps from the guest domain that use a different address width, which allows local guest users to cause a denial of service (host crash) via a crafted 32-bit process. | |||||
| CVE-2014-4022 | 1 Xen | 1 Xen | 2018-10-30 | 2.7 LOW | N/A |
| The alloc_domain_struct function in arch/arm/domain.c in Xen 4.4.x, when running on an ARM platform, does not properly initialize the structure containing the grant table pages for a domain, which allows local guest administrators to obtain sensitive information via the GNTTABOP_setup_table subhypercall. | |||||
| CVE-2014-2915 | 1 Xen | 1 Xen | 2018-10-30 | 5.5 MEDIUM | N/A |
| Xen 4.4.x, when running on ARM systems, does not properly restrict access to hardware features, which allows local guest users to cause a denial of service (host or guest crash) via unspecified vectors, related to (1) cache control, (2) coprocessors, (3) debug registers, and (4) other unspecified registers. | |||||
| CVE-2014-4021 | 1 Xen | 1 Xen | 2018-10-30 | 2.7 LOW | N/A |
| Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors. | |||||
| CVE-2014-3969 | 1 Xen | 1 Xen | 2018-10-30 | 7.4 HIGH | N/A |
| Xen 4.4.x, when running on an ARM system, does not properly check write permissions on virtual addresses, which allows local guest administrators to gain privileges via unspecified vectors. | |||||
| CVE-2014-3717 | 1 Xen | 1 Xen | 2018-10-30 | 3.3 LOW | N/A |
| Xen 4.4.x does not properly validate the load address for 64-bit ARM guest kernels, which allows local users to read system memory or cause a denial of service (crash) via a crafted kernel, which triggers a buffer overflow. | |||||
| CVE-2014-3716 | 1 Xen | 1 Xen | 2018-10-30 | 1.9 LOW | N/A |
| Xen 4.4.x does not properly check alignment, which allows local users to cause a denial of service (crash) via an unspecified field in a DTB header in a 32-bit guest kernel. | |||||
| CVE-2014-3715 | 1 Xen | 1 Xen | 2018-10-30 | 3.3 LOW | N/A |
| Buffer overflow in Xen 4.4.x allows local users to read system memory or cause a denial of service (crash) via a crafted 32-bit guest kernel, related to searching for an appended DTB. | |||||
| CVE-2014-3714 | 1 Xen | 1 Xen | 2018-10-30 | 3.3 LOW | N/A |
| The ARM image loading functionality in Xen 4.4.x does not properly validate kernel length, which allows local users to read system memory or cause a denial of service (crash) via a crafted 32-bit ARM guest kernel in an image, which triggers a buffer overflow. | |||||
| CVE-2014-3125 | 1 Xen | 1 Xen | 2018-10-30 | 6.2 MEDIUM | N/A |
| Xen 4.4.x, when running on an ARM system, does not properly context switch the CNTKCTL_EL1 register, which allows local guest users to modify the hardware timers and cause a denial of service (crash) via unspecified vectors. | |||||
| CVE-2014-3124 | 1 Xen | 1 Xen | 2018-10-30 | 6.7 MEDIUM | N/A |
| The HVMOP_set_mem_type control in Xen 4.1 through 4.4.x allows local guest HVM administrators to cause a denial of service (hypervisor crash) or possibly execute arbitrary code by leveraging a separate qemu-dm vulnerability to trigger invalid page table translations for unspecified memory page types. | |||||
| CVE-2015-7971 | 1 Xen | 1 Xen | 2018-10-30 | 2.1 LOW | N/A |
| 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. | |||||
| CVE-2015-7972 | 1 Xen | 1 Xen | 2018-10-30 | 2.1 LOW | N/A |
| 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." | |||||
| CVE-2015-7311 | 1 Xen | 1 Xen | 2018-10-30 | 3.6 LOW | N/A |
| 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. | |||||