News
Vigil@nce - Xen: information disclosure via HYPERVISOR_xen_version
March 2015 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
A local attacker can read a memory fragment via
HYPERVISOR_xen_version() of Xen, in order to obtain sensitive
information.
Impacted products: Unix (platform)
Severity: 1/4
Creation date: 05/03/2015
DESCRIPTION OF THE VULNERABILITY
The Xen product provides the HYPERVISOR_xen_version() hypercall
which can be used to obtain information about Xen version.
However, the xen_version() function of the xen/common/kernel.c
file does not initialize a memory area before returning it to the
user.
A local attacker can therefore read a memory fragment via
HYPERVISOR_xen_version() of Xen, in order to obtain sensitive
information.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/Xen-information-disclosure-via-HYPERVISOR-xen-version-16321
