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XEN : Security Vulnerabilities (Denial Of Service)

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2014-3968 DoS 2014-06-05 2014-07-17
5.5
None Local Network Low Single system None None Complete
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.
2 CVE-2014-3967 DoS 2014-06-05 2014-07-17
5.5
None Local Network Low Single system None None Complete
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.
3 CVE-2014-3717 20 DoS Overflow 2014-05-19 2014-06-13
3.3
None Local Medium Not required Partial None Partial
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.
4 CVE-2014-3716 20 DoS 2014-05-19 2014-06-13
1.9
None Local Medium Not required None None Partial
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.
5 CVE-2014-3715 119 DoS Overflow 2014-05-19 2014-06-13
3.3
None Local Medium Not required Partial None Partial
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.
6 CVE-2014-3714 20 DoS Overflow 2014-05-19 2014-06-13
3.3
None Local Medium Not required Partial None Partial
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.
7 CVE-2014-3124 264 DoS Exec Code 2014-05-07 2014-06-18
6.7
None Local Network Low Single system Partial Partial Complete
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.
8 CVE-2014-2986 20 DoS 2014-04-28 2014-04-29
5.5
None Local Network Low Single system None None Complete
The vgic_distr_mmio_write function in the virtual guest interrupt controller (GIC) distributor (arch/arm/vgic.c) in Xen 4.4.x, when running on an ARM system, allows local guest users to cause a denial of service (NULL pointer dereference and host crash) via unspecified vectors.
9 CVE-2014-2915 264 DoS 2014-04-24 2014-04-24
5.5
None Local Network Low Single system None None Complete
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.
10 CVE-2014-2599 20 DoS 2014-03-28 2014-03-31
4.9
None Local Low Not required None None Complete
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.
11 CVE-2014-2580 399 DoS 2014-04-15 2014-04-16
4.4
None Local Medium Single system None None Complete
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.
12 CVE-2014-1950 399 DoS +Priv 2014-02-14 2014-04-19
4.6
None Local Low Not required Partial Partial Partial
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.
13 CVE-2014-1896 20 DoS +Priv 2014-04-01 2014-04-19
4.9
None Local Network Medium Single system Partial Partial Partial
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."
14 CVE-2014-1895 189 DoS +Info 2014-04-01 2014-04-19
5.8
None Local Network Medium Single system Partial None Complete
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.
15 CVE-2014-1894 189 DoS Overflow 2014-04-01 2014-04-19
5.2
None Local Network Medium Single system None None Complete
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.
16 CVE-2014-1893 189 DoS Overflow 2014-04-01 2014-04-19
5.2
None Local Network Medium Single system None None Complete
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.
17 CVE-2014-1892 119 DoS Overflow 2014-04-01 2014-04-19
5.2
None Local Network Medium Single system None None Complete
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.
18 CVE-2014-1891 189 DoS Overflow 2014-04-01 2014-04-19
5.2
None Local Network Medium Single system None None Complete
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.
19 CVE-2014-1666 264 DoS +Priv 2014-01-26 2014-04-19
8.3
None Local Network Low Not required Complete Complete Complete
The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not properly restrict access to the (1) PHYSDEVOP_prepare_msix and (2) PHYSDEVOP_release_msix operations, which allows local PV guests to cause a denial of service (host or guest malfunction) or possibly gain privileges via unspecified vectors.
20 CVE-2014-1642 399 DoS Exec Code Mem. Corr. 2014-01-26 2014-04-19
4.4
None Local Medium Not required Partial Partial Partial
The IRQ setup in Xen 4.2.x and 4.3.x, when using device passthrough and configured to support a large number of CPUs, frees certain memory that may still be intended for use, which allows local guest administrators to cause a denial of service (memory corruption and hypervisor crash) and possibly execute arbitrary code via vectors related to an out-of-memory error that triggers a (1) use-after-free or (2) double free.
21 CVE-2013-6400 264 DoS +Priv 2013-12-13 2014-04-19
6.8
None Local Network High Not required Complete Complete Complete
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.
22 CVE-2013-6375 264 DoS +Priv 2013-11-23 2014-01-03
7.9
None Local Network Medium Not required Complete Complete Complete
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."
23 CVE-2013-4553 119 DoS Overflow 2013-12-24 2014-04-19
5.2
None Local Network Medium Single system None None Complete
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).
24 CVE-2013-4551 20 DoS 2013-11-17 2014-01-03
5.7
None Local Network Medium Not required None None Complete
Xen 4.2.x and 4.3.x, when nested virtualization is disabled, does not properly check the emulation paths for (1) VMLAUNCH and (2) VMRESUME, which allows local HVM guest users to cause a denial of service (host crash) via unspecified vectors related to "guest VMX instruction execution."
25 CVE-2013-4494 20 DoS 2013-11-02 2014-04-19
5.2
None Local Network Medium Single system None None Complete
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.
26 CVE-2013-4416 119 DoS Overflow 2013-11-02 2014-01-27
5.2
None Local Network Medium Single system None None Complete
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.
27 CVE-2013-4375 399 DoS 2014-01-19 2014-03-05
2.7
None Local Network Low Single system None None Partial
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.
28 CVE-2013-4371 399 DoS Exec Code Mem. Corr. 2013-10-17 2013-10-18
4.4
None Local Medium Not required Partial Partial Partial
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.
29 CVE-2013-4370 119 DoS Exec Code Overflow Mem. Corr. 2013-10-17 2013-10-18
4.6
None Local Low Not required Partial Partial Partial
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.
30 CVE-2013-4369 DoS 2013-10-17 2013-10-30
1.9
None Local Medium Not required None None Partial
The xlu_vif_parse_rate function in the libxlu library in Xen 4.2.x and 4.3.x allows local users to cause a denial of service (NULL pointer dereference) by using the "@" character as the VIF rate configuration.
31 CVE-2013-4356 264 DoS 2013-10-09 2013-10-10
5.4
None Local Network Medium Not required Partial Partial Partial
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).
32 CVE-2013-4329 264 DoS +Priv 2013-09-12 2014-04-19
6.5
None Local Network High Single system Complete Complete Complete
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.
33 CVE-2013-3495 264 DoS 2013-08-28 2013-10-07
4.7
None Local Medium Not required None None Complete
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).
34 CVE-2013-2212 119 DoS Overflow 2013-08-28 2014-04-19
5.7
None Local Network Medium Not required None None Complete
The vmx_set_uc_mode function in Xen 3.3 through 4.3, when disabling chaches, 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.
35 CVE-2013-2078 20 DoS 2013-08-14 2013-10-10
4.7
None Local Medium Not required None None Complete
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.
36 CVE-2013-2077 264 DoS 2013-08-28 2014-04-19
5.2
None Local Network Medium Single system None None Complete
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.
37 CVE-2013-2072 119 DoS Overflow +Priv Mem. Corr. 2013-08-28 2014-04-19
7.4
None Local Network Medium Single system Complete Complete Complete
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.
38 CVE-2013-1964 264 DoS +Info 2013-05-21 2014-04-19
6.9
None Local Medium Not required Complete Complete Complete
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 possible have other impacts via unspecified vectors.
39 CVE-2013-1952 20 DoS 2013-05-13 2014-04-19
1.9
None Local Medium Not required None None Partial
Xen 4.x, when using Intel VT-d for a bus mastering capable PCI device, does not properly check the source when accessing a bridge device's interrupt remapping table entries for MSI interrupts, which allows local guest domains to cause a denial of service (interrupt injection) via unspecified vectors.
40 CVE-2013-1919 264 DoS 2013-05-13 2014-04-19
4.7
None Local Medium Not required None None Complete
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."
41 CVE-2013-1918 119 DoS Overflow 2013-05-13 2014-04-19
4.7
None Local Medium Not required None None Complete
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."
42 CVE-2013-1917 20 DoS 2013-05-13 2014-04-19
1.9
None Local Medium Not required None None Partial
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.
43 CVE-2013-1432 399 DoS +Priv 2013-08-28 2014-04-19
7.4
None Local Network Medium Single system Complete Complete Complete
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 possible gain privileges via unspecified vectors.
44 CVE-2013-0231 119 DoS Overflow 2013-02-12 2013-06-20
4.9
None Local Low Not required None None Complete
The pciback_enable_msi function in the PCI backend driver (drivers/xen/pciback/conf_space_capability_msi.c) in Xen for the Linux kernel 2.6.18 and 3.8 allows guest OS users with PCI device access to cause a denial of service via a large number of kernel log messages. NOTE: some of these details are obtained from third party information.
45 CVE-2013-0215 264 DoS 2013-03-07 2013-10-10
4.3
None Local Network Medium Not required Partial None Partial
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.
46 CVE-2013-0154 DoS 2013-01-11 2014-04-19
1.9
None Local Medium Not required None None Partial
The get_page_type function in xen/arch/x86/mm.c in Xen 4.2, when debugging is enabled, allows local PV or HVM guest administrators to cause a denial of service (assertion failure and hypervisor crash) via unspecified vectors related to a hypercall.
47 CVE-2013-0153 DoS 2013-02-14 2014-04-19
4.7
None Local Medium Not required None None Complete
The AMD IOMMU support in Xen 4.2.x, 4.1.x, 3.3, and other versions, when using AMD-Vi for PCI passthrough, uses the same interrupt remapping table for the host and all guests, which allows guests to cause a denial of service by injecting an interrupt into other guests.
48 CVE-2013-0152 399 DoS 2013-02-12 2013-10-10
4.7
None Local Medium Not required None None Complete
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.
49 CVE-2013-0151 264 DoS 2013-03-07 2013-10-10
4.6
None Local Network High Not required None None Complete
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.
50 CVE-2012-6333 399 DoS 2012-12-13 2014-04-19
4.7
None Local Medium Not required None None Complete
Multiple HVM control operations in Xen 3.4 through 4.2 allow local HVM guest OS administrators to cause a denial of service (physical CPU consumption) via a large input.
Total number of vulnerabilities : 88   Page : 1 (This Page)2
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