NetSight
low1.9

CVE-2013-1917

Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest…

Impact

Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.

Affected products

VendorProductAffected versions
XenXen
Versions 3.1.3, 3.1.4, 3.2.0, 3.2.1, 3.2.2, 3.2.3

Weakness classification

References