CVE-2010-0741: Input Validation

First published: Fri Mar 26 2010(Updated: )

A flaw was found in the way the QEMU-KVM handled erroneous data provided by the guest Linux virtio-net driver. Due deficiency in the implementation of the TSO (TCP segment offloading), the guest's virtio-net driver transmitted improper data to the particular QEMU-KVM process on the host, resulting in its termination. A remote attacker could use this flaw to cause denial of service (guest crash) by sending certain, specially-crafted data to arbitrary open port on the target guest system. A remote attacker could exploit this to crash guests which use virtio networking on Linux kernels earlier than 2.6.26.

Credit: secalert@redhat.com

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