Integer overflow in the virtio_net_handle_mac function in hw/net/virtio-net.c in QEMU 2.0 and earlier allows local guest users to execute arbitrary code via a MAC addresses table update request, which triggers a heap-based buffer overflow.
CVSS Severity (version 2.0):
Impact Subscore: 6.4
Exploitability Subscore: 4.4
CVSS Version 2 Metrics:
Access Vector: Local network exploitable
Access Complexity: Medium
Authentication: Required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
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[Qemu-devel] 20140411 [PATCH for-2.0] virtio-net: fix guest-triggerable buffer overrun
[Qemu-devel] 20140411 Re: [PATCH for-2.0] virtio-net: fix guest-triggerable buffer overrun