Buffer overflow in the macvtap device driver in the Linux kernel before 3.4.5, when running in certain configurations, allows privileged KVM guest users to cause a denial of service (crash) via a long descriptor with a long vector length.
Exploitability
AV:AAC:MAu:SImpact
C:NI:NA:C5.2/AV:A/AC:M/Au:S/C:N/I:N/A:C