A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
qemu qemu |
||
redhat enterprise linux 8.0 |
||
redhat enterprise linux 9.0 |
||
fedoraproject fedora 39 |
Vulmon