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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-2017-17045 264 DoS +Priv +Info 2017-11-28 2017-12-15
7.2
None Local Low Not required Complete Complete Complete
An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service (BUG and host OS crash) by leveraging the mishandling of Populate on Demand (PoD) Physical-to-Machine (P2M) errors.
2 CVE-2017-17044 19 DoS 2017-11-28 2017-12-15
4.9
None Local Low Not required None None Complete
An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to cause a denial of service (infinite loop and host OS hang) by leveraging the mishandling of Populate on Demand (PoD) errors.
3 CVE-2017-15597 264 DoS Mem. Corr. +Info 2017-10-30 2017-11-29
9.0
None Remote Low Single system Complete Complete Complete
An issue was discovered in Xen through 4.9.x. Grant copying code made an implication that any grant pin would be accompanied by a suitable page reference. Other portions of code, however, did not match up with that assumption. When such a grant copy operation is being done on a grant of a dying domain, the assumption turns out wrong. A malicious guest administrator can cause hypervisor memory corruption, most likely resulting in host crash and a Denial of Service. Privilege escalation and information leaks cannot be ruled out.
4 CVE-2017-15596 400 DoS 2017-10-18 2017-11-03
4.9
None Local Low Not required None None Complete
An issue was discovered in Xen 4.4.x through 4.9.x allowing ARM guest OS users to cause a denial of service (prevent physical CPU usage) because of lock mishandling upon detection of an add-to-physmap error.
5 CVE-2017-15595 400 DoS +Priv 2017-10-18 2017-11-29
7.2
None Local Low Not required Complete Complete Complete
An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking.
6 CVE-2017-15594 19 DoS +Priv 2017-10-18 2017-11-29
4.6
None Local Low Not required Partial Partial Partial
An issue was discovered in Xen through 4.9.x allowing x86 SVM PV guest OS users to cause a denial of service (hypervisor crash) or gain privileges because IDT settings are mishandled during CPU hotplugging.
7 CVE-2017-15593 119 DoS Overflow 2017-10-18 2017-11-29
4.9
None Local Low Not required None None Complete
An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service (memory leak) because reference counts are mishandled.
8 CVE-2017-15592 264 DoS +Priv 2017-10-18 2017-12-12
7.2
None Local Low Not required Complete Complete Complete
An issue was discovered in Xen through 4.9.x allowing x86 HVM guest OS users to cause a denial of service (hypervisor crash) or possibly gain privileges because self-linear shadow mappings are mishandled for translated guests.
9 CVE-2017-15591 20 DoS 2017-10-18 2017-10-31
4.9
None Local Low Not required None None Complete
An issue was discovered in Xen 4.5.x through 4.9.x allowing attackers (who control a stub domain kernel or tool stack) to cause a denial of service (host OS crash) because of a missing comparison (of range start to range end) within the DMOP map/unmap implementation.
10 CVE-2017-15590 264 DoS +Priv 2017-10-18 2017-11-29
4.6
None Local Low Not required Partial Partial Partial
An issue was discovered in Xen through 4.9.x allowing x86 guest OS users to cause a denial of service (hypervisor crash) or possibly gain privileges because MSI mapping was mishandled.
11 CVE-2017-14431 119 DoS Overflow 2017-09-13 2017-09-26
4.9
None Local Low Not required None None Complete
Memory leak in Xen 3.3 through 4.8.x allows guest OS users to cause a denial of service (ARM or x86 AMD host OS memory consumption) by continually rebooting, because certain cleanup is skipped if no pass-through device was ever assigned, aka XSA-207.
12 CVE-2017-12136 362 DoS +Priv 2017-08-24 2017-11-03
6.9
None Local Medium Not required Complete Complete Complete
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.
13 CVE-2017-12135 264 DoS +Priv +Info 2017-08-24 2017-11-03
4.6
None Local Low Not required Partial Partial Partial
Xen allows local OS guest users to cause a denial of service (crash) or possibly obtain sensitive information or gain privileges via vectors involving transitive grants.
14 CVE-2017-12134 264 DoS +Priv +Info 2017-08-24 2017-11-05
7.2
None Local Low Not required Complete Complete Complete
The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.
15 CVE-2017-10923 20 DoS 2017-07-04 2017-08-21
5.0
None Remote Low Not required None None Partial
Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
16 CVE-2017-10922 400 DoS 2017-07-04 2017-11-03
5.0
None Remote Low Not required None None Partial
The grant-table feature in Xen through 4.8.x mishandles MMIO region grant references, which allows guest OS users to cause a denial of service (loss of grant trackability), aka XSA-224 bug 3.
17 CVE-2017-10921 264 DoS Mem. Corr. 2017-07-04 2017-11-03
10.0
None Remote Low Not required Complete Complete Complete
The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 2.
18 CVE-2017-10920 264 DoS Mem. Corr. 2017-07-04 2017-11-03
10.0
None Remote Low Not required Complete Complete Complete
The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.
19 CVE-2017-10919 19 DoS 2017-07-04 2017-11-03
5.0
None Remote Low Not required None None Partial
Xen through 4.8.x mishandles virtual interrupt injection, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-223.
20 CVE-2017-10917 476 DoS +Info 2017-07-04 2017-11-03
9.4
None Remote Low Not required Complete None Complete
Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive information, aka XSA-221.
21 CVE-2017-10914 415 DoS +Priv +Info 2017-07-04 2017-11-03
6.8
None Remote Medium Not required Partial Partial Partial
The grant-table feature in Xen through 4.8.x has a race condition leading to a double free, which allows guest OS users to cause a denial of service (memory consumption), or possibly obtain sensitive information or gain privileges, aka XSA-218 bug 2.
22 CVE-2016-10025 476 DoS 2017-01-26 2017-01-27
2.1
None Local Low Not required None None Partial
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.
23 CVE-2016-10024 20 DoS 2017-01-26 2017-11-03
4.9
None Local Low Not required None None Complete
Xen through 4.8.x allows local x86 PV guest OS kernel administrators to cause a denial of service (host hang or crash) by modifying the instruction stream asynchronously while performing certain kernel operations.
24 CVE-2016-9818 284 DoS 2017-02-27 2017-07-27
4.9
None Local Low Not required None None Complete
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving an asynchronous abort while at HYP.
25 CVE-2016-9817 284 DoS 2017-02-27 2017-07-27
4.9
None Local Low Not required None None Complete
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving a (1) data or (2) prefetch abort with the ESR_EL2.EA bit set.
26 CVE-2016-9816 284 DoS 2017-02-27 2017-07-27
4.9
None Local Low Not required None None Complete
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving an asynchronous abort while at EL2.
27 CVE-2016-9815 284 DoS 2017-02-27 2017-07-27
4.9
None Local Low Not required None None Complete
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host panic) by sending an asynchronous abort.
28 CVE-2016-9385 20 DoS 2017-01-23 2017-06-30
4.9
None Local Low Not required None None Complete
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.
29 CVE-2016-9383 20 DoS Exec Code +Info 2017-01-23 2017-06-30
7.2
None Local Low Not required Complete Complete Complete
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.
30 CVE-2016-9382 264 DoS +Priv 2017-01-23 2017-06-30
4.6
None Local Low Not required Partial Partial Partial
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.
31 CVE-2016-9378 284 DoS 2017-02-22 2017-07-27
2.1
None Local Low Not required None None Partial
Xen 4.5.x through 4.7.x on AMD systems without the NRip feature, when emulating instructions that generate software interrupts, allows local HVM guest OS users to cause a denial of service (guest crash) by leveraging an incorrect choice for software interrupt delivery.
32 CVE-2016-9377 682 DoS 2017-02-22 2017-07-27
2.1
None Local Low Not required None None Partial
Xen 4.5.x through 4.7.x on AMD systems without the NRip feature, when emulating instructions that generate software interrupts, allows local HVM guest OS users to cause a denial of service (guest crash) by leveraging IDT entry miscalculation.
33 CVE-2016-7154 416 DoS Exec Code +Info 2016-09-21 2017-04-09
7.2
None Local Low Not required Complete Complete Complete
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.
34 CVE-2016-7094 119 DoS Overflow 2016-09-21 2017-06-30
1.5
None Local Medium Single system None None Partial
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.
35 CVE-2016-6259 20 DoS 2016-08-02 2016-08-03
4.9
None Local Low Not required None None Complete
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.
36 CVE-2016-5242 DoS 2016-06-07 2016-11-28
4.7
None Local Medium Not required None None Complete
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.
37 CVE-2016-4963 284 DoS 2016-06-07 2016-06-10
1.9
None Local Medium Not required None None Partial
The libxl device-handling in Xen through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the backend directories in xenstore.
38 CVE-2016-4962 264 DoS +Priv 2016-06-07 2016-11-28
6.8
None Local Low Single system Complete Complete Complete
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.
39 CVE-2016-3961 20 DoS 2016-04-15 2016-11-28
2.1
None Local Low Not required None None Partial
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.
40 CVE-2016-3960 264 DoS Overflow +Priv 2016-04-19 2016-12-02
7.2
None Local Low Not required Complete Complete Complete
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.
41 CVE-2016-3157 264 DoS +Priv +Info 2016-04-12 2016-12-02
7.2
None Local Low Not required Complete Complete Complete
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.
42 CVE-2016-2271 DoS 2016-02-19 2017-06-30
2.1
None Local Low Not required None None Partial
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.
43 CVE-2016-2270 20 DoS 2016-02-19 2017-06-30
4.6
None Local Low Single system None None Complete
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.
44 CVE-2016-1571 17 DoS 2016-01-22 2016-12-02
4.7
None Local Medium Not required None None Complete
The paging_invlpg function in include/asm-x86/paging.h in Xen 3.3.x through 4.6.x, when using shadow mode paging or nested virtualization is enabled, allows local HVM guest users to cause a denial of service (host crash) via a non-canonical guest address in an INVVPID instruction, which triggers a hypervisor bug check.
45 CVE-2016-1570 20 DoS +Priv +Info 2016-01-22 2016-12-02
6.9
None Local Medium Not required Complete Complete Complete
The PV superpage functionality in arch/x86/mm.c in Xen 3.4.0, 3.4.1, and 4.1.x through 4.6.x allows local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates.
46 CVE-2015-8615 254 DoS 2016-01-08 2016-11-28
2.1
None Local Low Not required None None Partial
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).
47 CVE-2015-8552 20 DoS 2016-04-13 2017-11-03
1.7
None Local Low Single system None None Partial
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."
48 CVE-2015-8551 DoS 2016-04-13 2017-11-03
4.7
None Local Medium Not required None None Complete
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 hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."
49 CVE-2015-8550 284 DoS +Priv 2016-04-14 2017-11-03
5.7
None Local Low Single system Partial Partial Complete
Xen, when used on a system providing PV backends, allows local guest OS administrators to cause a denial of service (host OS crash) or gain privileges by writing to memory shared between the frontend and backend, aka a double fetch vulnerability.
50 CVE-2015-8341 399 DoS 2015-12-17 2017-06-30
7.8
None Remote Low Not required None None Complete
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.
Total number of vulnerabilities : 183   Page : 1 (This Page)2 3 4
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