Vigil@nce - Xen: information disclosure via XEN_DOMCTL_gettscinfo
May 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
XEN_DOMCTL_gettscinfo or XEN_SYSCTL_getdomaininfolist of Xen, in
order to obtain sensitive information.
– Impacted products: Fedora, Unix (platform)
– Severity: 1/4
– Creation date: 21/04/2015
DESCRIPTION OF THE VULNERABILITY
The Xen product implements the XEN_DOMCTL_gettscinfo and
XEN_SYSCTL_getdomaininfolist ioctls.
However, the two associated functions do not initialize a memory
area before returning it to the user.
A local attacker can therefore read a memory fragment via
XEN_DOMCTL_gettscinfo or XEN_SYSCTL_getdomaininfolist of Xen, in
order to obtain sensitive information.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/Xen-information-disclosure-via-XEN-DOMCTL-gettscinfo-16663