News
Vigil@nce - libvirt: denial of service via keepalive
January 2014 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can use the keepalive feature of libvirt, in order to
trigger a denial of service.
Impacted products: Debian, Fedora, Unix (platform)
Severity: 2/4
Creation date: 14/01/2014
DESCRIPTION OF THE VULNERABILITY
The libvirt library provides a standard interface on several
virtualization products (Xen, QEMU, KVM, etc.).
When a client connects on libvirtd, he can request a keepalive
session (which stays open for other queries). However, if he
closes this session before authenticating, an internal error
occurs.
An attacker can therefore use the keepalive feature of libvirt, in
order to trigger a denial of service.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/libvirt-denial-of-service-via-keepalive-14060
