NetSight
low1.9

CVE-2013-4368

The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS: segment override, uses an uninitialized variable as a segment bas…

Impact

The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS: segment override, uses an uninitialized variable as a segment base, which allows local 64-bit PV guests to obtain sensitive information (hypervisor stack content) via unspecified vectors related to stale data in a segment register.

Affected products

VendorProductAffected versions
XenXen
through 4.3.0
Versions 3.0.2, 3.0.3, 3.0.4, 3.1.3, 3.1.4

Weakness classification

References