Vulnerabilities > XEN > XEN > 4.4.3

DATE CVE VULNERABILITY TITLE RISK
2015-12-17 CVE-2015-8341 Resource Management Errors vulnerability in XEN
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.
network
low complexity
xen CWE-399
7.8
2015-12-17 CVE-2015-8340 Code vulnerability in XEN
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.
local
xen CWE-17
4.7
2015-12-17 CVE-2015-8339 Data Processing Errors vulnerability in XEN
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.
local
xen CWE-19
4.7
2015-12-17 CVE-2015-8338 7PK - Security Features vulnerability in XEN
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.
local
low complexity
xen CWE-254
7.2
2015-11-17 CVE-2015-7812 7PK - Security Features vulnerability in XEN
The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local guest users to cause a denial of service (host crash) via a preemptible hypercall to the multicall interface.
local
low complexity
xen CWE-254
4.9
2015-10-30 CVE-2015-7814 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in XEN
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.
local
xen CWE-119
4.7
2015-08-12 CVE-2015-5166 Permissions, Privileges, and Access Controls vulnerability in multiple products
Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twice.
local
low complexity
fedoraproject xen CWE-264
7.2
2015-03-18 CVE-2015-2152 Permissions, Privileges, and Access Controls vulnerability in multiple products
Xen 4.5.x and earlier enables certain default backends when emulating a VGA device for an x86 HVM guest qemu even when the configuration disables them, which allows local guest users to obtain access to the VGA console by (1) setting the DISPLAY environment variable, when compiled with SDL support, or connecting to the VNC server on (2) ::1 or (3) 127.0.0.1, when not compiled with SDL support.
1.9