Vulnerabilities > XEN

DATE CVE VULNERABILITY TITLE RISK
2017-01-26 CVE-2016-9932 Information Exposure vulnerability in XEN
CMPXCHG8B emulation in Xen 3.3.x through 4.7.x on x86 systems allows local HVM guest OS users to obtain sensitive information from host stack memory via a "supposedly-ignored" operand size prefix.
local
low complexity
xen CWE-200
3.3
2017-01-26 CVE-2016-10025 NULL Pointer Dereference vulnerability in multiple products
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.
local
low complexity
xen citrix CWE-476
5.5
2017-01-26 CVE-2016-10024 Improper Input Validation vulnerability in multiple products
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.
local
low complexity
xen citrix CWE-20
6.0
2017-01-26 CVE-2016-10013 Permissions, Privileges, and Access Controls vulnerability in XEN
Xen through 4.8.x allows local 64-bit x86 HVM guest OS users to gain privileges by leveraging mishandling of SYSCALL singlestep during emulation.
local
low complexity
xen CWE-264
7.8
2017-01-23 CVE-2016-9386 Permissions, Privileges, and Access Controls vulnerability in multiple products
The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/limit values.
local
low complexity
citrix xen CWE-264
7.8
2017-01-23 CVE-2016-9385 Improper Input Validation vulnerability in multiple products
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.
local
low complexity
xen citrix CWE-20
6.0
2017-01-23 CVE-2016-9383 Improper Input Validation vulnerability in multiple products
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.
local
low complexity
xen citrix CWE-20
8.8
2017-01-23 CVE-2016-9382 Permissions, Privileges, and Access Controls vulnerability in multiple products
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.
local
low complexity
xen citrix CWE-264
7.8
2017-01-23 CVE-2016-9380 Improper Input Validation vulnerability in multiple products
The pygrub boot loader emulator in Xen, when nul-delimited output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via NUL bytes in the bootloader configuration file.
local
high complexity
xen citrix CWE-20
7.5
2017-01-23 CVE-2016-9379 Improper Input Validation vulnerability in multiple products
The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes and S-expressions in the bootloader configuration file.
local
low complexity
xen citrix CWE-20
7.9