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.
CPE | Name | Operator | Version |
---|---|---|---|
fedora | eq | 39 | |
qemu | lt | 8.2.1 | |
enterprise_linux | eq | 8.0 | |
enterprise_linux | eq | 8.0 | |
enterprise_linux | eq | 9.0 |