Vulnerabilities > XEN > XEN > 4.2.3

DATE CVE VULNERABILITY TITLE RISK
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
2015-03-12 CVE-2015-2151 Permissions, Privileges, and Access Controls vulnerability in multiple products
The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service (memory corruption), or possibly execute arbitrary code via unspecified vectors.
local
low complexity
fedoraproject debian xen CWE-264
7.2
2015-03-12 CVE-2015-2045 Information Exposure vulnerability in multiple products
The HYPERVISOR_xen_version hypercall in Xen 3.2.x through 4.5.x does not properly initialize data structures, which allows local guest users to obtain sensitive information via unspecified vectors.
local
low complexity
xen fedoraproject debian CWE-200
2.1
2015-03-12 CVE-2015-2044 Information Exposure vulnerability in XEN
The emulation routines for unspecified X86 devices in Xen 3.2.x through 4.5.x does not properly initialize data, which allow local HVM guest users to obtain sensitive information via vectors involving an unsupported access size.
local
low complexity
xen CWE-200
2.1
2015-02-09 CVE-2015-1563 Resource Management Errors vulnerability in multiple products
The ARM GIC distributor virtualization in Xen 4.4.x and 4.5.x allows local guests to cause a denial of service by causing a large number messages to be logged.
local
low complexity
xen fedoraproject CWE-399
2.1
2015-01-07 CVE-2015-0361 Use After Free Denial of Service vulnerability in Xen
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.
network
low complexity
xen opensuse
7.8
2014-12-09 CVE-2014-9066 Code vulnerability in multiple products
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.
4.7
2014-12-09 CVE-2014-9065 Code vulnerability in multiple products
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.
4.4
2014-12-01 CVE-2014-8866 Code vulnerability in multiple products
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.
4.7
2014-11-24 CVE-2014-9030 Improper Input Validation vulnerability in multiple products
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.
7.1