7.8 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.222 Low
EPSS
Percentile
96.5%
The virtio_net_bad_features function in hw/virtio-net.c in the virtio-net
driver in the Linux kernel before 2.6.26, when used on a guest OS in
conjunction with qemu-kvm 0.11.0 or KVM 83, allows remote attackers to
cause a denial of service (guest OS crash, and an associated qemu-kvm
process exit) by sending a large amount of network traffic to a TCP port on
the guest OS, related to a virtio-net whitelist that includes an improper
implementation of TCP Segment Offloading (TSO).