Uninitialized Variable in Xen Hypervisor Allows Information Disclosure

CVE-2013-4368 · LOW Severity

AV:L/AC:M/AU:N/C:P/I:N/A:N

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.

Learn more about our Web Application Penetration Testing UK.