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- Keyword (text search): cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:x86:*
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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2018-12891 |
An issue was discovered in Xen through 4.10.x. Certain PV MMU operations may take a long time to process. For that reason Xen explicitly checks for the need to preempt the current vCPU at certain points. A few rarely taken code paths did bypass such checks. By suitably enforcing the conditions through its own page table contents, a malicious guest may cause such bypasses to be used for an unbounded number of iterations. A malicious or buggy PV guest may cause a Denial of Service (DoS) affecting the entire host. Specifically, it may prevent use of a physical CPU for an indeterminate period of time. All Xen versions from 3.4 onwards are vulnerable. Xen versions 3.3 and earlier are vulnerable to an even wider class of attacks, due to them lacking preemption checks altogether in the affected code paths. Only x86 systems are affected. ARM systems are not affected. Only multi-vCPU x86 PV guests can leverage the vulnerability. x86 HVM or PVH guests as well as x86 single-vCPU PV ones cannot leverage the vulnerability. Published: July 02, 2018; 1:29:00 PM -0400 |
V4.0:(not available) V3.0: 6.5 MEDIUM V2.0: 4.9 MEDIUM |
CVE-2018-10982 |
An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users to cause a denial of service (unexpectedly high interrupt number, array overrun, and hypervisor crash) or possibly gain hypervisor privileges by setting up an HPET timer to deliver interrupts in IO-APIC mode, aka vHPET interrupt injection. Published: May 10, 2018; 7:29:00 PM -0400 |
V4.0:(not available) V3.0: 8.8 HIGH V2.0: 7.2 HIGH |
CVE-2018-10981 |
An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users to cause a denial of service (host OS infinite loop) in situations where a QEMU device model attempts to make invalid transitions between states of a request. Published: May 10, 2018; 6:29:00 PM -0400 |
V4.0:(not available) V3.0: 6.5 MEDIUM V2.0: 4.9 MEDIUM |
CVE-2018-10472 |
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. Published: April 27, 2018; 11:29:00 AM -0400 |
V4.0:(not available) V3.0: 5.6 MEDIUM V2.0: 1.9 LOW |
CVE-2018-10471 |
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. Published: April 27, 2018; 11:29:00 AM -0400 |
V4.0:(not available) V3.0: 6.5 MEDIUM V2.0: 4.9 MEDIUM |
CVE-2018-7541 |
An issue was discovered in Xen through 4.10.x allowing guest OS users to cause a denial of service (hypervisor crash) or gain privileges by triggering a grant-table transition from v2 to v1. Published: February 27, 2018; 2:29:00 PM -0500 |
V4.0:(not available) V3.0: 8.8 HIGH V2.0: 6.1 MEDIUM |
CVE-2018-7540 |
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. Published: February 27, 2018; 2:29:00 PM -0500 |
V4.0:(not available) V3.0: 6.5 MEDIUM V2.0: 4.9 MEDIUM |
CVE-2017-17566 |
An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service (host OS crash) or gain host OS privileges in shadow mode by mapping a certain auxiliary page. Published: December 12, 2017; 6:29:00 PM -0500 |
V4.0:(not available) V3.0: 7.8 HIGH V2.0: 6.9 MEDIUM |
CVE-2017-17565 |
An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service (host OS crash) if shadow mode and log-dirty mode are in place, because of an incorrect assertion related to M2P. Published: December 12, 2017; 6:29:00 PM -0500 |
V4.0:(not available) V3.0: 5.6 MEDIUM V2.0: 4.7 MEDIUM |
CVE-2017-17564 |
An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging incorrect error handling for reference counting in shadow mode. Published: December 12, 2017; 6:29:00 PM -0500 |
V4.0:(not available) V3.0: 7.8 HIGH V2.0: 6.9 MEDIUM |
CVE-2017-17563 |
An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode. Published: December 12, 2017; 6:29:00 PM -0500 |
V4.0:(not available) V3.0: 7.8 HIGH V2.0: 6.9 MEDIUM |
CVE-2017-17046 |
An issue was discovered in Xen through 4.9.x on the ARM platform allowing guest OS users to obtain sensitive information from DRAM after a reboot, because disjoint blocks, and physical addresses that do not start at zero, are mishandled. Published: November 28, 2017; 6:29:00 PM -0500 |
V4.0:(not available) V3.0: 6.5 MEDIUM V2.0: 2.1 LOW |
CVE-2017-17045 |
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. Published: November 28, 2017; 6:29:00 PM -0500 |
V4.0:(not available) V3.0: 8.8 HIGH V2.0: 7.2 HIGH |
CVE-2017-17044 |
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. Published: November 28, 2017; 6:29:00 PM -0500 |
V4.0:(not available) V3.0: 6.5 MEDIUM V2.0: 4.9 MEDIUM |
CVE-2017-15595 |
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. Published: October 18, 2017; 4:29:00 AM -0400 |
V4.0:(not available) V3.0: 8.8 HIGH V2.0: 7.2 HIGH |
CVE-2017-15594 |
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. Published: October 18, 2017; 4:29:00 AM -0400 |
V4.0:(not available) V3.0: 8.8 HIGH V2.0: 4.6 MEDIUM |
CVE-2017-15593 |
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. Published: October 18, 2017; 4:29:00 AM -0400 |
V4.0:(not available) V3.0: 6.5 MEDIUM V2.0: 4.9 MEDIUM |
CVE-2017-15592 |
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. Published: October 18, 2017; 4:29:00 AM -0400 |
V4.0:(not available) V3.0: 8.8 HIGH V2.0: 7.2 HIGH |
CVE-2015-7504 |
Heap-based buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of service (instance crash) or possibly execute arbitrary code via a series of packets in loopback mode. Published: October 16, 2017; 4:29:00 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 4.6 MEDIUM |
CVE-2017-14431 |
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. Published: September 13, 2017; 6:29:00 PM -0400 |
V4.0:(not available) V3.0: 5.5 MEDIUM V2.0: 4.9 MEDIUM |